This is a legendary fix from the original Dark Souls that still applies to the Remaster. Windows has a hidden virtual device driver that conflicts with the game's memory address polling.
Go to your Steam Library.
It runs in your system tray and automatically flushes Windows' "Standby Memory" (cached data). DS:R often mistakes cached data for used RAM and crashes. ISLC prevents that cache from filling up. dark souls remastered ram fix
This sounds counter-intuitive, but bear with me. Dark Souls Remastered handles texture streaming poorly. This is a legendary fix from the original
"I can’t lose 40,000 souls to a memory leak," Greg whispered, his knuckles white. 000 souls to a memory leak