seriousfun
These plugins (and many others) work well because they use lookahead. They get to peek into the future and adjust themselves in real-time to upcoming audio events. Unfortunately, that delays everything else around them.

These are designed as mixing and mastering tools, not as real-time compositional tools, so choose other plugins while you are composing, and switch to the heavy hitters when mixing.

Wow, I'm having the same exact problem.  Thank you so much!

Does anyone know if the playback delays have got significantly longer with 64-bit version of Sonar and the Transient Shaper TS-64 Plug in (or with Win 8 versus Win 7)?
The reason I ask is that I have always left my recorded midi tracks (just drum tracks) to trigger Session Drummer when mixing - rather than having to freeze or bounce them down. I like to try out a Transient Shaper on some of the drums during mixing, and this all worked very well until I upgraded to 64-bit Sonar. Now the same tracks are completely unplayable - drum beats missing and badly out of time. So it's necessary to freeze the Session Drummer tracks during mixing. It only seems to be TS-64 which gives the problem - other plug-ins are fine. It's a much less flexible mixing setup, so a big step back for me - and I'm keen not to have to fall back to 32-bit Sonar.
 

Sounds more like a configuration problem than something you can blame totally on TS64.
 
What version of Sonar are you using & what are your system specs & interface make/model/driver/driver mode
 
It might also be a good idea to start off a new tropic of your own rather than tagging on to the end of one which is 4 and a half years old

Thanks, Colin. I used this thread because there had been a recent post (June 2013), but I've started a new one with some additional info as you suggested.