Guild Wars 2

So I’m up to fighting Mordy in this chapter. And everything goes swell until the forced flight phase. I run to an air vent. Right through. No flight. And If i do get thrown up into the air my glider does not respond at all. It’s all hit and miss but Unfortunately i don’t have the health to try it more than once or twice before the fight resets.
I was attempting this for about 6 hours yesterday after finally grinding out poison mastery. There’s not much i can do about my connection unfortunately. Graphics are turned down, everything else is disabled. It’s just the air vents. If i had an interact prompt that could possibly help but as far as i can tell this could be a huge problem for others with slower connections.
I don’t have any suggestions for this i just needed to get it off my chest because I’m just horribly frustrated.