FYI: during (Emby) Libary Scan I got this constantly high IOWAIT back but this is not a issue. This is because the mount has to touch every file in mount sequential...
P.S. v1.52 works great with my Setup (Ubuntu 20.04 | Kernel 5.4.0 | rclone v1.52.0)
looking forward to the new --vfs-cache-mode full ... this would be awesome