XU4 vs PI4

[MrVeink]

I was searching is XU4 or PI4 better on lakka and I found the Hardware Support list but PI4 wasn't there. I know that lakka works on PI4 but I didn't get the answer which is better with lakka. I tried to find the answer on libretro forum but nothing.The games I want to emulate is LoZ OoT for most part and smash of course. LoZ TP would be awesome if possible. I want the one with more performance because with all the accessories I want, PI4 is 3,10€ more expensive. How do I know which is better without buying both? Do anybody know the answer?