Massive chunk updates 200-400 when moving

When moving the chunk updates go to an average of 250 chunk updates, sometimes reaching 400, which dramatically decreases my fps to 30-60 from my usual 100-150. This does not just happen in one spot but everywhere. I think this is a snapshot bug because it didn't happen in previous versions. Maybe an option to limit chunk updates to your fps, if that's possible, may fix it.
Cheers, Tom.