I downloaded two chromium builds and see below one of which is good version , the other is bad version:

good version (428577) : https://commondatastorage.googleapis.com/chromium-browser-snapshots/index.html?prefix=Win_x64/428577/

bad version (428591): https://commondatastorage.googleapis.com/chromium-browser-snapshots/index.html?prefix=Win_x64/428591/

Could you please upgrade to the latest chrome canary and check with fresh profile , without any apps and extensions. If you still face the issue , please write us back with your observations.

Thanks !

i tested with latest canary (56.0.2912.0) and fresh profile.

I still face the issue.

Ypu can compare new tab opening amination speeds and lags between two builds i sent in the comment 1. 

Did you change some of chrome://flags ?
Can you upload screencast videos made with the good and bad build?

I recorded screencast but it is hardly identify problem in the videos. Despite that i am sending the screencasts. 

Deleted: actual.webm 1.0 MB

	actual.webm 1.0 MB View Download

Deleted: expected.webm 1.5 MB

	expected.webm 1.5 MB View Download

i didnt change any flag on chrome://flags and used fresh profiles to test. 

I also test in another pc that is also windows 10. 

Finally someone reported this (been too busy to report myself), gratitude to the reporter.

This affects an arsenal of top-chrome animations, including
tab opening/closing/moving animation,
omnibox tab-to-search animation,
omnibox security verbose state animation,
and find bar appearing/disappearing animation,
to name the prominences.

All animations (CSS, smooth scrolling, etc.) in content area (renderer) perform normally, so the bug appears specific to browser process.
--disable-gpu-vsync helps, but not perfect like it was; well, disabling v-sync never worked well on my machine.

I'm on Windows 7 with Aero enabled.

i agree with @innatere 

--disable-gpu-vsync flag makes ui animations better but not perfect still some hangs and freezes exists but obviously better than the default now. 

Thank you for providing more feedback. Adding requester "hdodda@chromium.org" for another review and adding "Needs-Review" label for tracking.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Issue dissolved in 56.0.2922.1.

canblbn@: Could you please confirm if this is resolved on the latest Dev(56.0.2922.1).

Issue has not been modified or commented on in the last 365 days, please re-open or file a new bug if this is still an issue.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot