Just another Engine.ini to boost performance but this one has some less common CVars that will actually get you some frames.
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I went digging through the CVar dump that the FFVIIRebirthFix mod has and worked through them, searching for ways to improve performance, finding a balance to get the game playable on my iGPU (780M). I see a 8-15fps boost which gets it over the hump to be playable IMO.
This with OptiScaler for the XESS is very nice.
If you get some tasty tangible fps improvements that are outside the margin of error, be sure to help me out by listening to my music on Spotify (DECADE DRiFT)
INSTALLATION: Place the file "Engine.ini" from the zip into C:\Users\<USERNAME>\Documents\My Games\FINAL FANTASY VII REBIRTH\Saved\Config\WindowsNoEditor