In 1.8 there is massive amount of lag caused by water rendering.
I can run a superflat world just fine but when I run into a village that has water in it, or an ocean in a normal world i get massive fps drops.
MC-71285
1.8 Massive Lag
Resolved
Duplicate
0
Mislav Miličević
(Unassigned)
Unconfirmed
Minecraft 1.8
Retrieved
Not a duplicate of MC-45458, this has nothing to do with the hardware setup.