Ok, 2k is really low... too low. I've loaded your char in simulationcraft and done a run: the resuls is around 6k dps. First rule of simulations: don't believe it

Simulationcraft is VERY optimistic about everything. In particular this assumes an optimized raid 25 configuration, heroism, speed potion, etc. etc. If you're in a 5-man you can forget about the 6k immediately. Overall, in a random 25 PuG you should be able to manage 4k really without trouble (we were doing 5-6k in naxx gear....).
Some questions:
- what are you aiming for? I mean: you need help because you want to raid? Or just do heroics?
- what kind of resources do you have? I mean time to run heroics, gold pieces, a guild which can carry you through ICC25HM?

In the short term:
- run randomday for the badges as well as raidweek and toravon. For heroic speed-up get a bear spec and queue as tank, you can easily manage all the old ones even in DPS gear (the new ones, HoR in particular, are another matter...).
- use the badges for the T10. 4T10 is the 1st priority. Which offspec piece to take? It depends on what raids you have access to, so just get what you can and pray for Toravon to give you something

- replace the idol with the triumph idol. Fill in the missing enchants, even cheap ones are better than nothing.
- some craftables are good and "relatively" cheap, I'm thinking the ilvl 245 ones.
- replace your glyphs: cat glyphing is Rip/Shred/Savage Roar, there is no choice whatsoever (well, almost..)
- for heroics you want the 3/3 Feral Instinct to speed up with trash.
But the most important: 2k means that your "rotation" is wrong: I saw others suggesting FbN and Ovale: I am personally against those addons for several reasons, so I suggest that you read about the cat dps priorities and get a good DoT/buff timer addon. There are lots of them, stuff like dotimer, classtimer, needtoknow, .. (I use a customized version of EventHorizon, but it has been abandoned, so it's not a good investment).
You can install FbN/Ovale together with a timer addon to see why they are suggesting one move over another, but keep in mind that:
- they are optimized for BiS cats: as a consequences some of the assumptions (crit and haste) may be off.
- the aim is to learn what to do based on a pattern of timers, not on which icon an addon is showing. Knowing WHY you want to do one move instead of another allows you to adapt to the situation, since not all combats are patchwerk.
Again, if you have a world of logs link of a combat or another log, it could help to see the "problem".