Performance is dramatic......

version 5.3.2
I created a project using world partitioning to be able to load only those parts that i’m working on. This was working well but after I added more and more splines (now over 500) performance became an issue. To open the level I’m working in, it takes at least 30 minutes to load everything, starting to work takes another amount of minutes, moving around doesn’t go smooth, autosave can take minutes (with no progress bar), with a lot of disk activity on the page files (I have 3 in the system) without significate CPU or GPU activity, and sometimes the system becomes completely unresponsive, all is stalled; the only solution is a reset of the system…