condition duration, can i reduce it?
There are foods you can obtain that reduce condition duration. Some rune sets like the Superior Rune of Melandru do the same.
Of course, having ways to outright cleanse the conditions away might be better.
Guardians are superb at removing conditions, especially if you trait for shouts removing them and then set your utilities to shouts. My super supporty Guardian has Purity of Voice and uses Retreat!, Save Yourselves!, and … um, I forget the name, sorry, but it’s the one that gives you and your allies Protection. There is also a signet heal skill that passively removes conditions from you every few seconds.
If you don’t want to shout all over the place, check your consecration skills, those also have condi removal effects.
(The above applies to PvE. If you are sPvPing I could be way off; I’ve only done one match ever of PvP, though it was on that Guardian in a Stronghold beta and my team did win whilst I protected the heck out of them and the Skritt).