**System Information**
Operating system: Windows-8.1-6.3.9600-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 472.12
**Blender Version**
Broken: version: 3.1.0 Alpha, branch: master, commit date: 2022-01-05 22:15, hash: `rB1d9bac7d921f`
Here is the file
{F12793852}
Performance fall down, when I use checkbox «As instance» for object, that instanced + object have disabled SubSurf modifier with zero levels.
Try to delete modifier or uncheck checkbox.
{F12793854}
Also realized instances cause slow movement of initial mesh. I suppose, initial mesh should be «frozen» and cached before pass to GN and changing it`s properties, thad do not influence to GN-tree shouldn`t cause performance drop.
{F12793866}
{F12793859}