Iv cleared all of this expansion with a DK tank. I find that now going into Throne heroics and even through normal that my DK isnt holding threat. Its to the point on heroic jin'rohk that I every time he taunts I have to drop off for 20-30 seconds and never use keg smash while hes tanking which is a huge dps loss for the raid itself since that 2-3 minutes per encounter that I am sitting around twiddling my thumbs. Even through the full encounter hes doing ~50-60k dps compared to my 80+k. Im not worried about my personal dps but sitting back for 2-3 minutes is damage not done to the boss and has caused us to hit enrage timers in the past and I dont think that any tank should have to sit around doing nothing during a raid encounter.
I dont know what else i can do because the boss switching back to me on any attempt is raid breaking and has caused us to wipe. Any advice on what we can do to solve this problem?