Bug Mystcraft is glitching can anyone help

I was playing FTB infinity evolved and was entering my first mystcraft world, everything seemed normal,until this happened does anyone know why its doing that

 

That could be a Vanilla shader being enabled randomly. If you go into the options and click Super Secret Settings (my be under Video Settings), does it change?

 

Thanks that's probably it I had clicked on the super secret settings to see what it did but it just lagged a lot