would my runs be able to be accepted even if i used the scott code to speed up shots after ive fired the ball?

Yes, there’s a category specifically for that.

https://www.speedrun.com/peggle_deluxe?h=Scott-Any&x=jdzew73d-wlekjmel.gq7xkpvl

ah so its only allowed in the specific category. good to know

Yeah, it's basically a cheat code, which is why it has its own category instead of being allowed on a main one :)