letyourlightshine
Well I upgraded,I Always do,I have used Sonar since the one before sonar x1,it came with my first interface.I own reason,protools,fl studio,ableton live and now after getting a 2014 macbook pro as a wedding gift from my wife,logic,but I prefer sonar.I write 90 percent of my music on it.But nothing in the new version has me that excited.I would have liked to see new content for dimension pro or maybe some actual drum kits for session drummer pro that were any good.The FX amp rx chains sounded like the usual terrible amp sims and it seems a bit slow.Could be I have a fast powerful mac and no viable way to use my favorite DAW on it,bootcamp-failed,virtual machines fail.So i can now run it on my PC which is much much slower than my mac or use Daws that I have a hard time writing on.Depressing,almost makes me want to quit altogether.
I don't know how old your PC is, but if you're experiencing slowness on an FX chain, I'm guessing old. In which case my best advice is, sell the mac and buy a new PC, if it's your favorite DAW. You can run all your other DAWs except Logic, which would be the only reason to own the Mac.
This isn't to start a Mac vs PC debate, I would say the same thing to a guy who's favorite DAW was logic and he had a 5 year old mac and his wife bought him a brand new PC that he tried turning into a hackintosh and found it didn't work.