If you can, you're going to want to exchange that pump for something smaller. 1.5hp is overkill for your pool. We see this all the time particularly on AG pools. Pump/filter combos are sold that are badly mismatched. Pool stores tell customers, "Oh, we'll upgrade to this great big pump for you." Customers don't know any better and think, hey, what a nice guy! But, in reality, it is not good. You don't want a big pump. You want a smaller pump paired with a larger filter. I'm not that familiar with cartridge filter sizes so I'll let someone else advise you more about this combo but I do know that you really don't want that big pump. The power of a too big pump can destroy cartridges or if it is a sand filter, can force debris right through the sand bed without filter.

If it is at all possible, don't install your pump and filter yet and see if you can exchange it for something else. Honestly, I'd go with a sand filter if you have the option rather than the cartridge. Much easier to use and maintain for most people. (I will tell you that all the mods on this forum and I think many of the support team people have sand filters.)

Let me see if I can find one of pump/filter people to chime in here and offer you a better combination in the hopes that it is not too late for you to make a change. I hope it isn't too late. You're going to be sorry you have that big pump, I'm afraid.