You could ask here https://gbatemp.net/threads/60-or-any-fps-cheat-codes-need-testers.580648/There are a lot of 60 fps mods/cheats out there.
So, is it theoretically possible to create 30 fps mod for this game?
Cause it's quite uncomfortable to play with an uncapped framerate.
It has already been asked on the same thread
Doesn't hurt to show your support by replying so the OP knows there's a lot of interest.It has already been asked on the same thread
Then it would have double buffer.I'm on it. But I can't promise that it will be perfect because there might be a chance that it's Game Speed is tied to the FPS.