[Deceptor]

doraj - The custom datstore items are for mods usually, sometimes other modifications use init_startup to specify custom datastore items, and these are queried instead of using XCache or any other method specified in your config.php. vB Optimise fixes this however by forcing them to use your custom datastore method.

That said, your screens show vB Optimise is working fine. If you disable vB Optimise, you should see that your queries on your forum pages increase by 2, those 2 being styles and templates. As for memory usage/speed, I'm afraid this isn't designed to reduce memory, and impact is insignificant, as for speed, that depends on your connection to the server really. Also check the Optimal Settings, storing CSS as css files will help with speed

But to sum up, it is working, and it is reducing queries I'm sorry you can't "feel" the impact of this browsing your forum, but perhaps you could ask any of your members if they notice a difference