How do i price check items in poe2 without wasting hours?

For currency itself skip the trade site and use the currency exchange npc in town. It shows the ratio people are actually trading at, which is a better number than any listing. Keep the overlay for gear.

Exiled Exchange 2. It's the poe2 version of the old trade overlay, you hover an item, press the hotkey and it pulls listings from the official trade site without you tabbing out. Two things it won't fix: it compares by the mods you tick, so untick junk rolls or everything looks worthless, and listed prices are asking prices, not what stuff actually sells for. If something gets zero whispers in a while, drop it.