After talking with some old friends regarding this, I would say export it, check for any optimizations if possible, then re-import.
This would then chop away any unnecessary tris that would be causing any lag! (If there are none, then you’re all good!) – I have also heard that parts tend to lag less than unions, but that seems to be on a case by case basis.
There are also some pros and cons of course, here are the few I thought of from the top of my head:
- You can find any unnecessary instances/objects in your model, then work on removing them for optimization.
- You would have some more free modeling options if you use say blender for example.
- You cant freely edit your mesh once its imported back into studio. (Slightly aggravating if you’re trying to get things done quick and smooth)
- Optimizing with meshes are slightly harder to do. (From what I heard at least, may differ depending on knowledge, etc.)
Well, there’s everything I know that could possibly help you with building/modeling!
Hope this helps!