Update first, then isolate the setting
The 0.4.0.76 notes fix significant stutter while previewing shelter-customization items, especially where large-object collision checks were involved. The 0.4.0.78 notes add further shelter-editing corrections.
Practical use
Install the current update, reproduce the issue in the same shelter context, and change one graphics or customization variable at a time. If the problem persists, record the build and use official support channels.
Version note
This independently written guide summarizes current official update information. Check the live game client and official notes before making a high-risk decision, because live-service rules can change.
Independent guide based on supplied research and current official information.