Sounds like you are doing ok. (I note that you didn’t mention how old your kid(s) are….) It won’t hurt if things occasionally take a little longer if it most of the time doesn’t.
I will say that I enjoy MEP math the most for short math lessons. Math for my 6yo son would take about 20 minutes most days… about 15 to 25 minutes generally (this is with MEP.) But what makes it even better is that each MEP lesson has around 4 to 7 activities in it, which can add variety and make it like a lot of short lessons. So it might have an activity introducing a new number (in year 1), and then doing a few problems that involve that number. Then it might have you sing a counting song, then doing some review type problems, and then doing a math puzzle….