ilmich hi! i read it, i wanted to install libreelec 10 on it. dont worry. wifi works fantastic on libreelec 11. im surprised how good both builds work, it really did change a lot in a year! I have contacted (again) jock on armbian forum to make multitool work on this box so maybe I can get armbian on nand and libreelec 11 on sd. i couldnt be more grateful to you for your work.
There have been improvements in the Kodi source code, I took advantage of some hidden configurations and gradually optimized the system. Consider that yours is one of the best boxes ever (apart from the fact that it has NAND).