
SPOILER
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
It's because of his disability. Iirc the accident left some part of his brain unable to send signals to his arm, that's why he's shaky irl. His arm is fine. In the game, he could shoot again because the rest of the brain is compensating for the part that was injured in the accident, so there's a way to bypass this problem. But because he's so skilled, his brain is often overloaded. He's actually fine physically but the mental tax is too high. Think about how if one person on the job quits and they don't hire another one, the work will be divided among the rest of the staff, leaving them more tired. I think it'll be explained in the next chapter(s) how some sort of mental compatibility (i forgot the exact term they used) in the VR game works.
Dayuuum seeing almond all sweaty got me feelin sumthin ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄