Hey Michael, 2018 is pretty stable. I'm not familiar with Synergy, but if you have something reproducible, I would love to collect scene files or data from where you are having issues. You can report a problem and include my name, and I'd be happy to look into it. You can log a report here.…
And remember that even if the performances are slower than 3ds max, Blender 2.8 has already improved a lot the performances of the viewport and will go from OpenGL 2.1 to OpenGL 3.3 thanks to Mike Erwin so you should take another look at the end of 2018 with an heavy scene (+ will introduce collections to work on them more…