Earlier bird gets the worm

I wanna get to bloom the faster way without sacrificing too much yield.

I’m in a beginner container.

I’m torn between repotting to a 5 or 7 gallon.

Just want to veg for 5-6 weeks then I have to flip. So I can’t veg for too long

Am I sacrificing a lot of yield if I settle with a 5 gallon versus a 7?