Housing and FPS drops (Verdant Partition?)

[Luca_]

Previous FC lead used a TON of verdant partitions and fountains in our large house and I had to rip them all out post-7.0 because I was dropping to like 10fps. It helped, but my framerate still tanks inside the house. Nothing else in the game causes such a dramatic performance hit for me so I have no clue what's going on with housing.

Editing to add specs:
MSI GF65
Intel Core i5-10500H
NVIDIA GeForce RTX 3050
16gb RAM
256GB NVMe SSD
Windows 11