Hello!
I have been forging a map for a while, but not even half way through the script limit when thr game started to lag heavily. Can this be avoided or can 343 maybe patch it? If not then 
What may be happening is there are entities being moved around too much. This only applies with normal physics entities, however.
When scripting, I lag badly if the following happens:
- Lots of objects moving like OP has said. - Lots of script brains, the game seems to struggle with lighting invisible objects (I always use 1x1 blocks with light baking off). - Scripting when the objects are near their number limit. - Having lots of scripts happening at once: if you need to script a large group of objects with the same instructions, give the objects a label, and only write one script applying to that label. It lags less with this, so I assume it is more efficient scripting (I guess it would be the Forge’s equivalent to using a sub-routine function).Hopefully by limiting the above it will reduce lag. Always try to complete all scripting before building the map to ensure it doesn’t get very buggy over time.