I downloaded the game and updated it to the latest patch, how good is the version for speedruning, what tricks work thanks for the replies

Version 2.1.0. is very good for speedrunning the game. It only patches out one glitch that existed in previous patches (the invincibility glitch used in the Legacy leaderboard). It also doesn't have the issue of crashing occasionally in Elun like older patches did, and includes the new Boss Rush and Dread modes.