just noticed this post –
i’ve loaded tabbles on several machines and have had 0 cpu/memory contention issues.
Right now, i have Tabbles database running on a separate (home network) machine
and with >40,000 files and >200 Tabbles i’m using <10MB memory and 2-3% CPU cycles: reported in ‘Resource Monitor’ as i manipulate (add, rename, etc.) TABBLES

. . . the only thing that slows me down is the access to the full list of ‘nested’ tabbles when i “Expand All Children” – i’d guess that much of that is network latency

hope that helps