I myself experienced this for a long time. redstone ticks would take seconds, mobs would fall through the air slowly when hit. all the classic signs of tick lag. in desperation i made a backup of my survival world and did /kill @e and it did fix the issue. through more experimentation i've found that having lots of villagers in the world is related to the problem. Obviously, this needs to be fixed. Villagers are my favorite part of minecraft and I'd hate to not be able to make use of them anymore.
I myself experienced this for a long time. redstone ticks would take seconds, mobs would fall through the air slowly when hit. all the classic signs of tick lag. in desperation i made a backup of my survival world and did /kill @e and it did fix the issue. through more experimentation i've found that having lots of villagers in the world is related to the problem. Obviously, this needs to be fixed. Villagers are my favorite part of minecraft and I'd hate to not be able to make use of them anymore.