Practice snap shooting in testing grounds or in a lobby. You have to be able to apply pressure and soak at the same time.
Start stationary, then work in doing it while moving.
In this exercise you try to put your crosshairs on a chosen component as quickly as possible, fire, then twist to about 90 degrees and then twist back and fire again on the same component.
The other key thing is lowering your sensitivity in game and using a lower the DPI on your mouse.
You also want to take a look at a hitbox diagram of the mech you're playing. On this I stand in front of a mech in training grounds, then use the free cam to see what parts of my mech I'm actually exposing to a mech in front of me when twisting.
Theres honestly more to it than that; like dead side shielding; some mechs you can move your arms up or down to obscure more of your torso, some mechs you wiggle a bit more often than full on twisting, sometimes when you twist away from someone to take fire you actually need to wiggle a bit to spread damage around.
Edited by Prototelis, 04 July 2019 - 07:35 PM.