I had a LRAWD with 19's for a little over a year and 36k miles. Then it died <<RIP>> and I ordered a Performance to take it's place. I've only got 90 miles on the Performance due to the lockdown and having it shipped out for tint and PPF, but here are my impressions.
Both suspensions are bouncy. You can see this in multiple videos. The car has a "head bobbing" motion that's almost like an old air cooled Porsche. The Performance reduces this maybe 10%. To get rid of this, you need aftermarket coilovers.
I feel like the Performance rides with less "edge". Again, surprising given shorter springs, heavier wheels, and smaller sidewalls. But perhaps that's the PS4S's. It's definitely less jarring over potholes, expansion joints, etc. Then again it could be due to the fact that my car is a 2020 vs. my 18 month older car, but I do remember when I test drove a Performance twice when I ended up buying my first car, that I seem to remember the same thing.
Both handle mostly the same. Again, I've only got 90 miles on the Performance so I could revisit this in the future.
Brakes are one reason I got the P. The LRAWD brakes aren't good. Yes, you don't use them like 95% of the time. But when you DO use them, it's because you need them. I never trusted the LRAWD brakes. In my short tests, the P brakes are definitely better.
Finally, I'm not in a position to mod the cars. My wife simply won't tolerate more than the token tint / PPF type mods. I may end up doing it anyway in the future but for now, not going to rock the boat. Plus, I have a 911 for the weekends anyway.
If you're not in a position to mod, becuase of lack of cash flow, lack of approving spouse, or inability to deal with the car out of commission a few days at a time, I'd say get the Performance.
If you can do the above, I say get the LRAWD, then spend the rest of the money on a big brake kit, some better wheels, and a set of MPP Sport or Redwood / Ohlins Coilovers. Sure, that will be a bit more than the price of a performance after you factor in labor, but not all that much more. And you will have MUCH more car. If the speed bothers you, there's always the $2k option to boost acceleration.