Hi, DX9 is poorly optimised on Navi cards.You should finally stop spreading this nonsense. The framedrops in GW2 with Navi cards have nothing to do with DX9 as an API. This is a game specific bug. Tons of DX9 games run fine with these cards.Aren't you the same guy that said the d912pxy was "placebo bull kitten". Oh the irony of you telling someone to stop spreading nonsense.... I also have a rx5700 and have bad stutter in a number of dx9 games. I also have a older machine with a nvidia gtx980 and don't have the same performance issues with gw2 and other dx9 games I play with my 5700xt. Can you please contribute something meaningful rather than poo hooing people who own, use the cards and just might have more knoweldge than yourself on the subject matter. When I owned the Rx580 polaris I did not have the issues running gw2 in dx9 like I do with my rx 5700xt, bad stutter. You'll see options in nvidia drivers to force multithreading, this applies to dx9 games as well. Amd has failed to deliver a good dx9 experience with Navi! Thanks