You need a decent greatsword for a PvE DPS builds.AC with BM would be considered "low end" because BM weapons are absolute garbage. And Mace+shield is only good for shield block skills and shield bash chains OR full-on tank build with Empyrean Providence. It's not good for the main DPS build.
If you want to do good DPS in PvE, you need a decent greatsword and gear socketed correctly. Right now aim for 1,000-1,100 crit UNDER food&scroll and 3000 accuracy to land all of your skills.
I don't know what ping you have, but high ping (70+) would lower your DPS as templar significantly. As a templar with a greatsword, you have to weave every 2nd skill and know proper rotation to sustain good DPS. High ping prevents you from weaving efficiently.
As for PvP its simple - You need PVP weapon. Something mythical like Sauro or RST greatsword at least +10 with at least BM weapon under it.