Game freezes and then crashes frequently, usually when saving

Update: This was an issue with my swap space not being big enough and the game requesting very large amounts of memory. I think the game requesting that much memory is still an issue, but at the very least the issue with freezing and crashing appears to have been resolved by fixing my swap space partition to be actually big enough for my computer lol.

Further update: Instead of freezing and crashing, it is instead a significant slowdown (i.e. two game update frames a minute, if that) without freezing my actual machine. The process's wchan flips between `swap_readpage`, `folio_wait_bit_common`, and rarely `folio_wait_bit_ccat`. It takes 16 gb of virtual memory on my machine with 8 gigs of ram and 16.5 gigs of swap space. Something is going on with its requested memory.

It seems that this problem gets progressively worse following repeated loads; there might be a memory leak in the load_save code somewhere? After rebooting the game, the slowness goes away.

Okay, this appears to be caused by a unity engine issue. Guess I just have to quit and load every time the game gets too stuttery.