Could you please provide more details? Which version, Windows or Android? What sort of hardware/device are you running the game on? Versions prior to v0.9.8 had some performance issues and used more memory, so on less powerful hardware that can cause what you're describing. If this is on Android, you need at least 4GB of RAM to run the game without crashing. Also, if you're on Android, try the v0.9.8 demo to see if there is any improvement for you
Let me know if you have any success trying what I suggested. You can also switch to using the Retro pixel art mode together with the rest or on its own, just to see if there is any option that doesn't lag/crash. Also try to use FSR, either Quality or Ultra quality (or any other options, to see if they help)