Adding to this Thread in in the big 2026, working with many mods and on 1.22.7 trying the OP original settings changes in Control Panel+ closing Discord has seen to vastly improve the stuttering! Played for 30 mins and loaded a bunch of new chunks and even with that other than the normal drop in FPS due to generating new chunks I haven't had a single stutter of that magnitude at all! Thank you all who has posted in this thread!