Modern Setup Knowledge + dx9 wrapper

Setting resolution in the ini, fullscreen yes, and matching desired framerate would make it work, however below adds 2 more steps for better performance, a wrapper and letting you know how reducemouselag works.

use d3d8 wrapper
https://github.com/crosire/d3d8to9/releases
put in system folder
Run game in Direct 3D mode (calls d3d, > searches system folder first before windows, > since there is now a d3d8 here it uses this one, this d3d8 wrapper is written to run in d3d9 code)

Also go to ut2004.ini file (configuration settings) and search for reducemouselag under '[D3DDrv.D3DRenderDevice]' turn this to false otherwise you will have significant fps drop and the benefit of it is irrelevant at such a high fps as it was made for under 30fps.

Search for DesiredRefreshRate under '[D3DDrv.D3DRenderDevice]' and change the number to your refresh rate otherwise you will get stuttering which feels like 30fps at a 300-400fps reading.

Run it in fullscreen mode

Fixed

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