Why does my game crash after I pass through the subway doors and after I give a foot train? Is there any way I can fix this?

tbh, idk, try to reinstall game, if you really want to speedrun, then Windows, if reinstallation doesn’t help, and depending on what kind of computer you have

Always turn off the setting "Water Shader" in the advanced settings option. Its the most probable problem for game crashing and graphics bugging in the entire game after speedrunning a while or generally playing the game for a extended amount of time