socili , you are posting on a thread from 2013, which was about a very different problem, namely "micropauses", you instead are reporting larger pauses.
As discussed many times already on the forum, there's an Addon Manager settings, the "Anti pop-up" slider, that allows you to choose between saving memory and fps, or getting less pauses. If you set it higher than default ( which is 1 ), objects will be loaded earlier, so you'll get only one pause when the whole scenery loads, and probably a smoother flight afterwards, and the cost of increased memory usage and possibly fps loss. Your choice.
