I've read somewhere that women don't have the same feeling as men when the "prostate" area gets massaged because women simply don't have prostates. Anal sex for women wouldn't be as pleasurable as anal sex for gay men.
Also for women to enjoy sex they need to be doing it as long as possible, some say minimum 20 mins. CG and grinding the base of her clit plus labia is normally how they can build up the momentum then change to doggy or reverse CG. If their partners have PE then of course sex will feel like a chore because they can't build up to that momentum. It's like us guys being sucked for 2 mins then suddenly she had to rush to the toilet because she ate hot curry last night and by the time she's done she's no longer in the mood for sex.