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У меня долгое время так было: -high -dx9 -novid -32bit -noaafonts -noforcemspd -nod3d9ex -noforcemaccel -console -useforcedmparms +map_enable_background_maps 0 -prewarm -mapdota -nohltv -novr -nojoy
Only these 2 options are vaguely related to "optimisation". -novid disables the intro movie. fps_max can also be set in the Video settings.
Redundant since 2020. Dota 2 preloads the map and other assets by default.
Invalid option, does nothing since 2021. DirectX 9 support was removed from Dota 2.
All these are not related to performance / optimisation.
There is a lot of bad / outdated advice about launch options. Please ask about specific options and don't copy blindly.