I think is the compatibility profile and the chunk loading, try this video settings: Graphics: Fancy Smooth Lighting: Minimum Clouds: OFF MIpmap levels: OFF Use Vbos: ON Render distance: 10 Chunks Max framerate: Unlimited Particles: Minimal Use Vsync: OFF Alternate blocks: OFF
I think is the compatibility profile and the chunk loading, try this video settings:
Graphics: Fancy
Smooth Lighting: Minimum
Clouds: OFF
MIpmap levels: OFF
Use Vbos: ON
Render distance: 10 Chunks
Max framerate: Unlimited
Particles: Minimal
Use Vsync: OFF
Alternate blocks: OFF
And also update to the new 1.8-pre2