A lot of people that I know use tillerino, the bot that gives beatmaps around your level and shows how much PP you get. The bot also shows how much PP is on a map you want to try. I think that osu! should implement it into the game where before you play the beatmap, somewhere on the top left in the beatmap info, they should show the scale of PP depending on what % you get like tillerino. This way, you don't have to check your profile every time you play a beatmap to see how much PP you get.