Major Lag in the nether only!

This bug has been in the game for quite some time now and it is still not fixed. So basically there is some major lag issues that happen in the nether only. For example all entities such as mobs and drops, block breaking and block placing, would freeze for like 3 seconds and this would happen like every 1 - 2 minutes. So another example when I’m breaking or placing blocks in the nether the sound of the breaking/placing would stop and when I’m breaking blocks the breaking animation is not visible then a few seconds later everything catches up. (Eating is also a part of this as the sound for eating would stop for a few seconds then it catches up) So another example I was playing on my survival world and my hearts wouldn’t regen, I was on 4 hearts with full hunger and they wouldnt regen. This stayed like this for a solid 5 or 10 mins then out of no where I got set on fire even though there were no fire or ghasts near me but I just set on fire for no reason and I died and lost all my loot and I was so frustrated I deleted the word. This lag glitch has gotten too far now to the point of dying with no explanation (the example I just gave you about the fire) please fix asap it’s super annoying. (These lag spikes only happen in the nether only)