Blockchain.info wallet implemented "priority" and "regular" fee. Last night I sent $200 worth with $8 fee and it got confirmed in 1.5 hrs.
Do you think it's fair with the transaction you did with them? $8 fee is a very big amount and 1.5 hours isn't that fast with that fee.
I will guess that it is a priority fee, I've been using blockchain.info with their regular and recommended fee.
I haven't tried to adjust the fees and there's no problem to me, it's not even getting delayed for so many hours just like others are complaining.