its not uncommon to start high and come down a bit. PLA+ typically has it’s glass transition right around there, and you do not want to be above that.

check the actual surface temperature, if you can, since most beds, the surface will be cooler than what the probe under it is saying, but typically you want 55ish for printing temp.

another way you can check is to just set some scrap plastic of the same filament on it. If it goes rubbery and pliant, its too high. the tricky thing about glass transition is it’s not a single point, it’s more of a small range, where, approaching it, it starts getting noticeably softer until it stops changing as much.