Don't send if Medium Priority is above 30 sat/vB unless you must. Wait a few hours; fees often drop at night or on weekends. Sunday is usually cheapest.
There is a reason why the high, medium and low fee exist. Some people might want to do their transaction immediately and they can’t wait for how long the fee will take to come down, so the pay the high fee. If you are in a hurry to conclude your transaction, you will pay the relevant fee, provided it something you can afford. If delaying your transaction won’t cause you any problem, then you can wait for the fee to come down. But if delaying your transaction will cost you something bigger than the transaction fee, you pay it and get your business wrapped up.