It sounds like you have the means to achieve one or the other. Why not combine the single results?
1. Take the audio from time remapping in AE.
2. Take the vision from Time Warp.
3. Spit it out as a finished clip or Use Dynamic Link in PPro.
I know you are frustrated, but there is no magic plugin for the results you want. You will have to work with what exists and blend them. Slow-mo speed-up is an effect and not a simple thing to do.
– Jon 🙂
How many editors does it take to change a light bulb?