Expected size of Memory caching

is but 88 Mb database size normal for single user? was the only appropriated one.

I tried

  1. database optimization
    Homelab NC Slow upload
    NextCloud Performance Optimizations - Please Contribute!
    Occupy as much as 600mb Memory in QNAP? - #4 by tflidd
  2. database size
    App + DB Server - where to allocate storage?
  3. cache size
    Best cheap hardware to run Nextcloud on? - #278 by Stuart_Naylor

but none of them tells me, what size for DB and cache I shell consider.
May you can push me in the right direction of search?

are you referring to Using the occ command?
thank you
stefan