Never got my notification from B&H that the HP Reverb was in stock...per my request. Guess I head that way now to see if any are in stock.
Just checked...pre-order only.
Try also turning off "Adaptive GPU Performance Scale" along with "ASW". One other thing I did was to set my PD through the Tool and set my PD in Sim to 1.0. I am getting 90 fps in the cockpit...although my system is a little faster than yours. Give it a shot and let us know if it makes any difference.
I'm an owner who also have my stick between my legs. The pedals are close. The way I use them is to push the stick towards the rudders during takeoff and landings...then bring it back afterwards. My stick is on a stand that is movable.
http://www.neutronusa.com/prod.cfm/3567173/glb?gclid=EAIaIQobChMIg96F5fnz4gIVikcNCh2kSwH_EAkYAyABEgLZo_D_BwE
You may have seen this one as well during your search. This one cost more and I don't see where I can update inventory...but says in stock.
Found this searching Google. Not sure your location. http://www.nextwarehouse.com/item/?3413385_g10e&gclid=EAIaIQobChMIx_T3gJ_l4gIVF57ACh3G9Qu2EAYYBSABEgLBYPD_BwE