Well it happened the same with us before the update the lag was very less to absolutely zero after the update we experienced the lag but we ignored it but it just increased by a lot I used a uae and singapore which was close to us but nothing change we were total maybe 8 to 9 friends not including me then I started noticing some stuff like when I played alone and I was in nether the lag was zero but when some other player joined and were at the base in the overworld i started experiencing lag so there was always a player at the base when we played making the game delay or lag or i started noticing that the happy ghast made the game delay or lag we had one before making the delay or lag but it was less so we ignored it then I brought in 3 more making it unplayable so I tested my theory by moving the ghast out of the range of every player far I didn't want to kill them so I moved them which just lagged the hell out of my ps4 but when I moved and came back to the base the lag was zero absolutely zero so after that to further test my theory I went to the location where happy ghast and made one friend to stay at the base and guess what the game delayed or lagged a lot so it proved my theory and our realm went back to normal so I think you have the same problem as me so move the happy ghast out of every player range and play peacefully I just hope mojang fixes this issue because happy ghast are very useful
I hope this helps you if it doesn't I don't know anymore than that
Aarush kumar
Well it happened the same with us before the update the lag was very less to absolutely zero after the update we experienced the lag but we ignored it but it just increased by a lot I used a uae and singapore which was close to us but nothing change we were total maybe 8 to 9 friends not including me then I started noticing some stuff like when I played alone and I was in nether the lag was zero but when some other player joined and were at the base in the overworld i started experiencing lag so there was always a player at the base when we played making the game delay or lag or i started noticing that the happy ghast made the game delay or lag we had one before making the delay or lag but it was less so we ignored it then I brought in 3 more making it unplayable so I tested my theory by moving the ghast out of the range of every player far I didn't want to kill them so I moved them which just lagged the hell out of my ps4 but when I moved and came back to the base the lag was zero absolutely zero so after that to further test my theory I went to the location where happy ghast and made one friend to stay at the base and guess what the game delayed or lagged a lot so it proved my theory and our realm went back to normal so I think you have the same problem as me so move the happy ghast out of every player range and play peacefully I just hope mojang fixes this issue because happy ghast are very useful
I hope this helps you if it doesn't I don't know anymore than that