After updating to .45b I have noticed that saving takes a LONG time. Loading does as well. Also, my saves are not in my appdata/roaming anymore, theyre just in C:/Users/Me. Could this be causing the problem?
edit: I noticed in taskmanager that when i load my map, theres a host process for windows services that comes up that uses a whole lot of memory. Don't know if it's related or anything
For sure is related, the game map (+items, buildings, enemies, ...) is fully loaded into memory. Loading a game consist of read all that stuff from disk and place it into memory (RAM).
How many RAM you have? You notice the same issue when you load/save a tutorial map?