Paid $4.26 on a $133 transfer – why unconfirmed?

I’m predicting that this transaction will confirm in less than a week considering its relative feerate.

Paid $4.26 on a $133 transfer – why unconfirmed?

Because the input addresses are 1... addresses instead of the newer SegWit addresses bc1. By switching to a native SegWit addresses you may enjoy faster confirmation times at any same feerate.

The destination address is 3... which means probably it’s a SegWit address too. However, 3... addresses pay slightly higher fees than bc1 addresses so bc1 addresses are suggested whenever possible. (Still, the suggested feerate difference between 1... and 3... addresses will make a difference when you spend from your destination address)