Bee hives/nests containing bees in inventory cause significant lag

find a beehive then give yourself a silk touch pickaxe

when the bees go inside at night time or when they are done with flowers mine the hive with silk touch (no campfire underneath) 

 

open your inventory then click the hive to move it around and it will lag hard

but it should not lag and then the empty hives move like other items not at 0.000001% speed in inv.