I’ve been having same issues for over a year now. I did open the support ticket and nothing help. Then I decide to tweak in-game graphic setting and see what can I get best out of this. I’ve try many different setting and finally I found remedy. Again, it is remedy, not solution. We need to rely on Anet to fix this completely, but in the mean time try the following.
Diable “Show All player names”
Resolution – windowed (XXXX – XXXX) – choose highest window resolution setting
Graphic Setting – Autodetect
Antialiasing – none
Character Model limit – low
Character Model Quality – Low
after u choose the window resolution, game will be in window mode, but press “Game menu” and click “full screen mode” at the upper left corner
Funny thing is, in the resolution setting, I choose the full screen but same resolution (XXXX – XXXX) as window, and client still crash during heavy graphic fight. Than I use window resolution and enter full screen mode, Game don’t crash. I have no idea why. haha
One more thing, u may use it as “auto detect” setting without changing "Antialiasing and character model setting, but u will get some graphic distortion (as shown in picture) during fight. And from time to time, game will crash if u open the “overview map” right after ‘world boss’ event. Well, at least it won’t crash during the fight.
It may not be the best resolution, but it still better than “best performance” graphic setting.
Please note that, I haven’t tested on silver waste and dry top map yet. But already cover most of the world boss event. So far it is fine for me. I will post again after I tested on silver waste (VW) event. Have a nice day