I don’t think MMOs have anywhere near the response time of a shooter, nor do they need it.
Geez that doesn’t sound fun. The only problems I have had is in the start of a round, which is more understandable as there’s 100 headless chickens running around. It’s a feature of these royale netcodes that their performance improves as the players left declines. When it’s 40 or less remaining it should be consistently good from then till the end.
Anyway, for other reasons I play this game occasionally but not all the time. Maybe scaling back the amount you play instead of dropping it entirely will bring the fun back?