Handicaps when playing against weaker opponents?

Hello everyone, me and my friends have recently gotten into pickleball and it’s great. The only issue is that I played tennis all four years of highschool and I am much better than them, to the point that I’ve beaten one of them 11-2 with my non dominant hand and I’ve 1v2ed them 11-4. I play doubles and singles, and I notice their not having as much fun because I simply win all the time. Anyways, my question is what challenges or handicaps can I impose on myself so the game is more fair, other than 2 I’ve already tried.