diff --git a/Source/Core/Core/IOS/ES/ES.h b/Source/Core/Core/IOS/ES/ES.h
index 4e2d0fa8d9..10af9fbd02 100644
--- a/Source/Core/Core/IOS/ES/ES.h
+++ b/Source/Core/Core/IOS/ES/ES.h
@@ -105,10 +105,10 @@ public:
   std::vector<std::array<u8, 20>> GetSharedContents() const;
 
   // Title contents
-  s32 OpenContent(const ES::TMDReader& tmd, u16 content_index, u32 uid);
-  ReturnCode CloseContent(u32 cfd, u32 uid);
-  s32 ReadContent(u32 cfd, u8* buffer, u32 size, u32 uid);
-  s32 SeekContent(u32 cfd, u32 offset, SeekMode mode, u32 uid);
+  s32 OpenContent(const ES::TMDReader& tmd, u16 content_index, u32 uid, Ticks ticks = {});
+  s32 CloseContent(u32 cfd, u32 uid, Ticks ticks = {});
+  s32 ReadContent(u32 cfd, u8* buffer, u32 size, u32 uid, Ticks ticks = {});
+  s32 SeekContent(u32 cfd, u32 offset, SeekMode mode, u32 uid, Ticks ticks = {});
 
   // Title management
   enum class TicketImportType
@@ -371,7 +371,7 @@ private:
   struct OpenedContent
   {
     bool m_opened = false;
-    FS::Fd m_fd;
+    u64 m_fd;
     u64 m_title_id = 0;
     ES::Content m_content;
     u32 m_uid = 0;
diff --git a/Source/Core/Core/IOS/ES/TitleContents.cpp b/Source/Core/Core/IOS/ES/TitleContents.cpp
index 547df70eaf..9a68475743 100644
--- a/Source/Core/Core/IOS/ES/TitleContents.cpp
+++ b/Source/Core/Core/IOS/ES/TitleContents.cpp
@@ -4,18 +4,17 @@
 
 #include "Core/IOS/ES/ES.h"
 
-#include <utility>
 #include <vector>
 
 #include "Common/Logging/Log.h"
-#include "Common/MsgHandler.h"
 #include "Core/HW/Memmap.h"
 #include "Core/IOS/ES/Formats.h"
+#include "Core/IOS/FS/FileSystemProxy.h"
 #include "Core/IOS/Uids.h"
 
 namespace IOS::HLE
 {
-s32 ESDevice::OpenContent(const ES::TMDReader& tmd, u16 content_index, u32 uid)
+s32 ESDevice::OpenContent(const ES::TMDReader& tmd, u16 content_index, u32 uid, Ticks ticks)
 {
   const u64 title_id = tmd.GetTitleId();
 
@@ -29,13 +28,13 @@ s32 ESDevice::OpenContent(const ES::TMDReader& tmd, u16 content_index, u32 uid)
     if (entry.m_opened)
       continue;
 
-    auto file = m_ios.GetFS()->OpenFile(PID_KERNEL, PID_KERNEL, GetContentPath(title_id, content),
-                                        FS::Mode::Read);
-    if (!file)
-      return FS::ConvertResult(file.Error());
+    const std::string path = GetContentPath(title_id, content, ticks);
+    s64 fd = m_ios.GetFSDevice()->Open(PID_KERNEL, PID_KERNEL, path, FS::Mode::Read, {}, ticks);
+    if (fd < 0)
+      return fd;
 
     entry.m_opened = true;
-    entry.m_fd = file->Release();
+    entry.m_fd = fd;
     entry.m_content = content;
     entry.m_title_id = title_id;
     entry.m_uid = uid;
@@ -50,43 +49,48 @@ s32 ESDevice::OpenContent(const ES::TMDReader& tmd, u16 content_index, u32 uid)
 
 IPCReply ESDevice::OpenContent(u32 uid, const IOCtlVRequest& request)
 {
-  if (!request.HasNumberOfValidVectors(3, 0) || request.in_vectors[0].size != sizeof(u64) ||
-      request.in_vectors[1].size != sizeof(ES::TicketView) ||
-      request.in_vectors[2].size != sizeof(u32))
-  {
-    return IPCReply(ES_EINVAL);
-  }
+  return MakeIPCReply(IPC_OVERHEAD_TICKS, [&](Ticks ticks) -> s32 {
+    if (!request.HasNumberOfValidVectors(3, 0) || request.in_vectors[0].size != sizeof(u64) ||
+        request.in_vectors[1].size != sizeof(ES::TicketView) ||
+        request.in_vectors[2].size != sizeof(u32))
+    {
+      return ES_EINVAL;
+    }
 
-  const u64 title_id = Memory::Read_U64(request.in_vectors[0].address);
-  const u32 content_index = Memory::Read_U32(request.in_vectors[2].address);
-  // TODO: check the ticket view, check permissions.
+    const u64 title_id = Memory::Read_U64(request.in_vectors[0].address);
+    const u32 content_index = Memory::Read_U32(request.in_vectors[2].address);
+    // TODO: check the ticket view, check permissions.
 
-  const auto tmd = FindInstalledTMD(title_id);
-  if (!tmd.IsValid())
-    return IPCReply(FS_ENOENT);
+    const auto tmd = FindInstalledTMD(title_id, ticks);
+    if (!tmd.IsValid())
+      return FS_ENOENT;
 
-  return IPCReply(OpenContent(tmd, content_index, uid));
+    return OpenContent(tmd, content_index, uid, ticks);
+  });
 }
 
 IPCReply ESDevice::OpenActiveTitleContent(u32 caller_uid, const IOCtlVRequest& request)
 {
-  if (!request.HasNumberOfValidVectors(1, 0) || request.in_vectors[0].size != sizeof(u32))
-    return IPCReply(ES_EINVAL);
+  return MakeIPCReply(IPC_OVERHEAD_TICKS, [&](Ticks ticks) -> s32 {
+    if (!request.HasNumberOfValidVectors(1, 0) || request.in_vectors[0].size != sizeof(u32))
+      return ES_EINVAL;
 
-  const u32 content_index = Memory::Read_U32(request.in_vectors[0].address);
+    const u32 content_index = Memory::Read_U32(request.in_vectors[0].address);
 
-  if (!m_title_context.active)
-    return IPCReply(ES_EINVAL);
+    if (!m_title_context.active)
+      return ES_EINVAL;
 
-  ES::UIDSys uid_map{m_ios.GetFSDevice()};
-  const u32 uid = uid_map.GetOrInsertUIDForTitle(m_title_context.tmd.GetTitleId());
-  if (caller_uid != 0 && caller_uid != uid)
-    return IPCReply(ES_EACCES);
+    ES::UIDSys uid_map{m_ios.GetFSDevice()};
+    const u32 uid = uid_map.GetOrInsertUIDForTitle(m_title_context.tmd.GetTitleId());
+    ticks.Add(uid_map.GetTicks());
+    if (caller_uid != 0 && caller_uid != uid)
+      return ES_EACCES;
 
-  return IPCReply(OpenContent(m_title_context.tmd, content_index, caller_uid));
+    return OpenContent(m_title_context.tmd, content_index, caller_uid, ticks);
+  });
 }
 
-s32 ESDevice::ReadContent(u32 cfd, u8* buffer, u32 size, u32 uid)
+s32 ESDevice::ReadContent(u32 cfd, u8* buffer, u32 size, u32 uid, Ticks ticks)
 {
   if (cfd >= m_content_table.size())
     return ES_EINVAL;
@@ -97,25 +101,26 @@ s32 ESDevice::ReadContent(u32 cfd, u8* buffer, u32 size, u32 uid)
   if (!entry.m_opened)
     return IPC_EINVAL;
 
-  const auto result = m_ios.GetFS()->ReadBytesFromFile(entry.m_fd, buffer, size);
-  return result.Succeeded() ? *result : FS::ConvertResult(result.Error());
+  return m_ios.GetFSDevice()->Read(entry.m_fd, buffer, size, {}, ticks);
 }
 
 IPCReply ESDevice::ReadContent(u32 uid, const IOCtlVRequest& request)
 {
-  if (!request.HasNumberOfValidVectors(1, 1) || request.in_vectors[0].size != sizeof(u32))
-    return IPCReply(ES_EINVAL);
+  return MakeIPCReply(IPC_OVERHEAD_TICKS, [&](Ticks ticks) -> s32 {
+    if (!request.HasNumberOfValidVectors(1, 1) || request.in_vectors[0].size != sizeof(u32))
+      return ES_EINVAL;
 
-  const u32 cfd = Memory::Read_U32(request.in_vectors[0].address);
-  const u32 size = request.io_vectors[0].size;
-  const u32 addr = request.io_vectors[0].address;
+    const u32 cfd = Memory::Read_U32(request.in_vectors[0].address);
+    const u32 size = request.io_vectors[0].size;
+    const u32 addr = request.io_vectors[0].address;
 
-  INFO_LOG_FMT(IOS_ES, "ReadContent(uid={:#x}, cfd={}, size={}, addr={:08x})", uid, cfd, size,
-               addr);
-  return IPCReply(ReadContent(cfd, Memory::GetPointer(addr), size, uid));
+    INFO_LOG_FMT(IOS_ES, "ReadContent(uid={:#x}, cfd={}, size={}, addr={:08x})", uid, cfd, size,
+                 addr);
+    return ReadContent(cfd, Memory::GetPointer(addr), size, uid, ticks);
+  });
 }
 
-ReturnCode ESDevice::CloseContent(u32 cfd, u32 uid)
+s32 ESDevice::CloseContent(u32 cfd, u32 uid, Ticks ticks)
 {
   if (cfd >= m_content_table.size())
     return ES_EINVAL;
@@ -126,7 +131,7 @@ ReturnCode ESDevice::CloseContent(u32 cfd, u32 uid)
   if (!entry.m_opened)
     return IPC_EINVAL;
 
-  m_ios.GetFS()->Close(entry.m_fd);
+  m_ios.GetFSDevice()->Close(entry.m_fd, ticks);
   entry = {};
   INFO_LOG_FMT(IOS_ES, "CloseContent: CFD {}", cfd);
   return IPC_SUCCESS;
@@ -134,14 +139,16 @@ ReturnCode ESDevice::CloseContent(u32 cfd, u32 uid)
 
 IPCReply ESDevice::CloseContent(u32 uid, const IOCtlVRequest& request)
 {
-  if (!request.HasNumberOfValidVectors(1, 0) || request.in_vectors[0].size != sizeof(u32))
-    return IPCReply(ES_EINVAL);
+  return MakeIPCReply(IPC_OVERHEAD_TICKS, [&](Ticks ticks) -> s32 {
+    if (!request.HasNumberOfValidVectors(1, 0) || request.in_vectors[0].size != sizeof(u32))
+      return ES_EINVAL;
 
-  const u32 cfd = Memory::Read_U32(request.in_vectors[0].address);
-  return IPCReply(CloseContent(cfd, uid));
+    const u32 cfd = Memory::Read_U32(request.in_vectors[0].address);
+    return CloseContent(cfd, uid, ticks);
+  });
 }
 
-s32 ESDevice::SeekContent(u32 cfd, u32 offset, SeekMode mode, u32 uid)
+s32 ESDevice::SeekContent(u32 cfd, u32 offset, SeekMode mode, u32 uid, Ticks ticks)
 {
   if (cfd >= m_content_table.size())
     return ES_EINVAL;
@@ -152,19 +159,20 @@ s32 ESDevice::SeekContent(u32 cfd, u32 offset, SeekMode mode, u32 uid)
   if (!entry.m_opened)
     return IPC_EINVAL;
 
-  const auto result = m_ios.GetFS()->SeekFile(entry.m_fd, offset, static_cast<FS::SeekMode>(mode));
-  return result.Succeeded() ? *result : FS::ConvertResult(result.Error());
+  return m_ios.GetFSDevice()->Seek(entry.m_fd, offset, static_cast<FS::SeekMode>(mode), ticks);
 }
 
 IPCReply ESDevice::SeekContent(u32 uid, const IOCtlVRequest& request)
 {
-  if (!request.HasNumberOfValidVectors(3, 0))
-    return IPCReply(ES_EINVAL);
+  return MakeIPCReply(IPC_OVERHEAD_TICKS, [&](Ticks ticks) -> s32 {
+    if (!request.HasNumberOfValidVectors(3, 0))
+      return ES_EINVAL;
 
-  const u32 cfd = Memory::Read_U32(request.in_vectors[0].address);
-  const u32 offset = Memory::Read_U32(request.in_vectors[1].address);
-  const SeekMode mode = static_cast<SeekMode>(Memory::Read_U32(request.in_vectors[2].address));
+    const u32 cfd = Memory::Read_U32(request.in_vectors[0].address);
+    const u32 offset = Memory::Read_U32(request.in_vectors[1].address);
+    const auto mode = static_cast<SeekMode>(Memory::Read_U32(request.in_vectors[2].address));
 
-  return IPCReply(SeekContent(cfd, offset, mode, uid));
+    return SeekContent(cfd, offset, mode, uid, ticks);
+  });
 }
 }  // namespace IOS::HLE
diff --git a/Source/Core/Core/IOS/ES/TitleManagement.cpp b/Source/Core/Core/IOS/ES/TitleManagement.cpp
index df9c6ec9c2..cf63efd8f6 100644
--- a/Source/Core/Core/IOS/ES/TitleManagement.cpp
+++ b/Source/Core/Core/IOS/ES/TitleManagement.cpp
@@ -793,7 +793,7 @@ ReturnCode ESDevice::ExportContentEnd(Context& context, u32 content_fd)
 {
   if (!context.title_import_export.valid || !context.title_import_export.content.valid)
     return ES_EINVAL;
-  return CloseContent(content_fd, 0);
+  return static_cast<ReturnCode>(CloseContent(content_fd, 0));
 }
 
 IPCReply ESDevice::ExportContentEnd(Context& context, const IOCtlVRequest& request)