are powerbuilds useless in S1 online road racing?

As title says. No matter what meta power tune i use, i still am extremely slower than my submeta awd 650s, are the powerbuilds really that bad or do i just suck at handling it? I can play powerbuilds in A class fairly decently and actually benefit from more power, so i wonder if in S1 the powerbuilds just barely outscore the awd when absolutely perfect driving or if i just cannot handle it