Best 6 Gaming Mouse for DOTA 2: A Gamer's Guide in 2022
There's currently an issue which delays mouse clicks (and maybe all commands) in Dota by about ~50 ms, Video showing this as well as games overall input delay Vs. Modern games. :
Significant mouse delay when playing dota2 in linux mint 21 · Issue #2165 · ValveSoftware/Dota-2 · GitHub
How to tweak settings to fix FPS lag in Dota 2 - TheNerdMag