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Can confirm that on macOS Sierra Public Beta 3 this issue is not presented.
@SreechandraD thanks for tip
I have the same issue since update to Sierra. I use Windows 10 as VM and after update to Sierra got the lagging trackpad. And one more problem...
My OS X version is OS X 10.9.5 (13F18) - the latest beta of 10.9.5
RequestId - 49018306
I manage to force work the workaround.