I specifically remember a couple of years ago i was playing the game on a FX cpu, which are not that great IPC wise, at over 150 fps in lane.
Last time i checked lol FPS on that CPU was dipping to 80, and that's not even the worst, today I can't even match the FPS i had years ago on that FX with CPUs with literally 50% better ipc + higher clocks.
So what is Riot doing? Are we even gonna be able to play this game next year? Looking at how other games work, even with huge graphic overhauls things look they have improved not went the other way.
Like how hard is it to maintain such a tiny game while having a ridiculous budget?