Memory flush every 10-15 minutes

Every 10-15 minutes game seems to flush ram (it goes from using 8GB to 5GB), unloads all textures, unloads the map and the global map. It is annoying in itself, but if you happen to press a key during the lag, it also remembers your movement vector, and doesn't pause on pressing Escape.

Is there a way to combat this, preferably the unloading all together? I have 64GB or RAM, so I don't need to save those 2GB that it tries to preserve.


https://imgur.com/zLgVjyG

Is there any workaround for this? The game continues restarting internally every map, with spinning gears.