>>326308690
You can change the animation curves for blinking at least, but I'm not sure if you'll be able to do so for visemes.
For general movement, you can put a full-elasticity dynamic bone on the root of your avatar and lower the update rate. [spoiler]The effect isn't as cool in-game because VRChat's IK shits out so much you'll think it's just the game.[/spoiler]