Married 37m always horny but wife can’t keep up.

As mentioned I’m a 37M married with 2 kids. We are happily married and love our family we have together. The only thing we are lacking is sex. I’m always horny not so sure about my wife, I do all the normal things a loving affectionate husband would do, help out around home, give her time to herself without kids, show her affection, kiss her neck, slap and grab her ass, grab her boobs, do all these things when the time is right and no young eyes looking of course. I can count on one hand how many times we have sex during a month. I most of the time resort to watching porn, usually homemade porn similar couples to us, I’ve got old videos of us fucking on my phone I usually end up cumming to. I have an extremely high sex drive, I need her warm pussy more than what I’m getting, as I type this message I’m aroused and hard. Any suggestions?