Fps drop in osu! Laser

I've been playing osu lazer more often lately, since I got bored of the classic osu and decided to give it a try, but I noticed something that I don't know if it only happened to me or to others too.

When entering the map section (where you choose what to play, the leaderboards and all that appear) I noticed that there is a big drop in fps, in the menu and in the game the game runs at about 120 stable fps, but when I enter the map section they drop to 70-80, and if I decide to view my profile or download songs it drops to about 40-50, I don't know if my computer has to do with that or if it is simply the game optimization (I would understand if it is a problem with my computer, since it is a somewhat old laptop)