That is a lot for an idling system. Time for a serious clean up first.
Or you have a zillion plug ins and or toolbars running inside your brower.
Those are the first to go.

Then open Poser, load you scene and check momory load again.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!