Guild Wars 2 has always had a slight input lag.
Some of this is probably due to the aftercast on some abilities. But mostly I blamed my WLAN, despite low pings.
However recently this issue has gotten more pronounced.
Quite frequently now the game will not respond to button presses and not trigger the ability as intended. Other times the game will register it twice due to micro-lag.
This is especially irritating on a Thief where this can result in double ability usage that can often get you killed. I’ve considered my keyboard but don’t have comparable issues with any other games so it must really be GW2.
Sometimes I think addeding a short 0.5 second global cooldown might actually help alleviate the issue.