[2022] Input Lag in TM2020, but decent FPS

Recently I downloaded Trackmania 2020, however there is an issue which makes it very annoying to play well. I constantly get ~0.2-0.4 sec of input lag, whether in solo or in arcade rooms etc.

I have tried setting GPU/CPU sync to None, Immediate, 1 Frame etc but this hasn't helped. V-Sync has always been off. I use mouse and keyboard and have an integrated GPU (in case any of this info helps.)

My machine isn't exactly the best, but the same input lag is still there even when the FPS is steady.

I've seen a few threads across this forum or other sites but so far none of the solutions really work. Any ideas?