With so much miners that went to bitcoin cash before so the mining fee became expensive but after the hype of bitcoin cash. Many did went again back to bitcoin and now they are into mining again, the fees can be paid as low as 81sat/b now. And the lowest total fee I saw yesterday was only 2 USD though it's still quite expensive for the people who only have small transactions but that's great as unconfirmed transactions are now back at 77k.