[Toolkit feature]: Performance enhancements: Selection / transform with gizmos in heavy scenes
General scene interaction performance seems to be heavily impacted when there are many layers. The performance impact appears to remain to a noticeable degree, even when (for example) all but one layer is "muted". https://www.youtube.com/watch?v=EeIBaSspoQA
One particularly noticeable effect on performance when many layers (or lights?) exist is that transforming lights or replacement geometry using the viewport gizmos is much slower, and selecting objects incurs a UI hitch which can last a few seconds.
Interesting observation from discord member @happysufigee : https://discord.com/channels/1028444667789967381/1028444668918235197/1402693104850440282
"i found out something related to laggy toolkit, if you try to move lights when you're in captures its butter smooth, only lags in replacements tab"