Some written in the menu does not exactly match yours and probably depends on the fact that I have the latest update of the Pongo Skin while you may have an older update.

In Menu Buttons you have to click on "Cockpit Buttons" Now visible: 4, now that you are in Cockpit Buttons you have to disable "Show Quick Menu Button", it should be the first line at the top.

If you don't have these settings, all you have to do is update at least one of the latest versions of the Pongo Skin.

I don't want to go into the detail of your Cocktail Skin, sometimes a single plugin is enough to slow everything down or even crash iGO ......