This information won’t actually be useful to you, because nobody here is you. Focusing on time also probably won’t help much – you can’t be like, “It’s been an hour so I’m done,” you just have to study until you understand the material. Talk to your teacher about strategies to catch up. You might need a tutor or to supplement your textbook with online lessons and practice problems.
They’re all important skills that may be better or faster for different situations.
Algebra is vital for precalc and calculus. You need to build that foundation now.