I've been in multiple Labtech/Automate environments. 200-1500 agents. Put simply, it always has under performed. I've had the VM server on-prem same building, server in data-center & server in another state. I've done in place upgrades & solo upgrade to 12.
I would recommend only have plugins you're utilizing and keep them up to date. Ensure the maintenance that are set out of the box are functioning. I've never used the web version. I think if this product is used as intended in its major parts, it worth the wait.