Alright so I haven’t been able to play .75 for a week now. I’ve tried a bunch of “solutions” but nothing has had an effect. When I join a server on the .75 classic client my fps will max out at 30. Sometimes it will jump around at 50 but if I alt+tab out of the game and rejoin it drops to 30, if I break a few blocks it drops to 30, or if I inject it drops to 30. This all started after a recent windows 10 update but others aren’t having the problem. At least one other person is having this same problem. Any help would be helpful.
This didn’t do anything for me. Muffins advice was to change screen resolution to 720 and then game resolution to 720 windowed. It’s close enough to fullscreen that the gameplay doesn’t change and all my fps problems are gone.
AFAIK, GPU doesn’t matter for .75, it doesn’t use the GPU to render anything.
This helped me on my old Windows 8, might work for you too. https://www.buildandshoot.com/forums/viewtopic.php?f=5&t=6434
Also might try this (font is way better even if fps doesn’t increase)