FSE is giving me delays, please help me

[Syykfk]

I disabled FSO by modifying the registry and checking "Disable FSO" in the compatibility of valorant.exe, and I disabled MPO.
But every time I do this, I experience input lag in the game, and the more obvious difference is that mouse movement becomes slower and heavier in FSE mode.
I don’t know why this is the case, because FSE should have the lowest latency, but the effect on my computer is that FSO feels much better than FSE.
Please help me find out the cause of this or find a solution. Thank you in advance to anyone who helps me.
Below are my registry changes

[HKEY_CURRENT_USER\System\GameConfigStore]
"GameDVR_Enabled"=dword:00000000
"GameDVR_FSEBehaviorMode"=dword:00000002
"GameDVR_FSEBehavior"=dword:00000002
"GameDVR_HonorUserFSEBehaviorMode"=dword:00000001
"GameDVR_DXGIHonorFSEWindowsCompatible"=dword:00000001
"GameDVR_EFSEFeatureFlags"=dword:00000000
"GameDVR_DSEBehavior"=dword:00000002

[FPSMaster]

If you suspect your mouse movement is slowed down, you can benchmark your mouse input with MouseTester. Also, test it while being in the game. For the most consistent results, do fast large mouse movements and small ones and check MouseTester afterwards for any abnormalities.

If you have a 1000hz mouse and it shows you like 200mhz or less, it's suboptimal.
FSO shouldn't affect your mouse in any way, other than potentially adding or decrease lag. But It doesn't mess with your mouse input.

Also disabling FSO usually doesn't result in any major latency benefits and it only works for DX11 Games. We are talking about maybe -1ms lag, depending on your system.
But I would still recommend disabling it, to get the legacy flip. Doesn't hurt