strat for maxing math score?

i’m taking the sat tomorrow and i’ve already gotten an 800 on reading so i am just trying to boost my math score now by 20-40 points to get a super score i would be happy with. should i speed through/not focus on the reading part to conserve energy? or should i take it normally? would colleges even care if my reading score dropped by ~100 pts? just generally looking for advice for what the strategy is to approach this test