Should I tell my so he doesn't sexually satisfy me?

I feel like that's one of those things that might change a relationship forever. I don't mind that he's on the small side, but his performance is crap. He is a lazy lover who goes weeks without sex then when we finally do have sex it's over in a few minutes (well no fucking duh. That's what happens when you rarely have sex) I love him in every other way but I constantly look at porn and masterbate every single day because my sex life sucks ass. What should I do? And I don't want to break up with a kind, faithful, hard working man because I hate his penis (and what he does with it)

and he doesn't do foreplay. Ever! 😩