I also had my problems with Howard. The Beautiful Visit and Something in Disguise went down nicely, but I had to abandon Something in Disguise.
Faulkner can be daunting. I think in the age of modernism I was more prepared to put up with his stylistic difficulty. I don't think I would be now.
Sorry you've picked The Price of Salt. That and the also early Strangers on a Train are rightly famous because of the movie versions, but are written in a "talky" style which she later abandoned. I can confidently recommend any novel she wrote after that time, as I've read most. I'm currently on this: