Thanks for the report. I am unable to reproduce the above issue on windows 7 with chrome version Windows 7 with chrome version '50.0.2661.87'. I would request you to please try the above issue by creating a new user from chrome://settings and let us know if the issue still persists.

I really appreciate your help.

Thank you!

Could you please update the thread as per the above comment #1, also we suggest to try running Chrome's CCT to better experience from https://www.google.com/chrome/cleanup-tool/. 

Apologize. Forgot about this issue. There are so many unfixed issues over several years to keep track of. Thanks for reminding me.

Test url: https://news.google.com/news/section?cf=all&pz=1&ned=us&topic=snc

To keep my main profile clean I used:
New profile cmd line: "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --user-data-dir="C:\News_sluggish_new_profile_test\profile"

I retested with the clean new profile with the above url, middle clicked a few main news links and the same thing happened. The page started to lag/stutter, you notice this clearly by the animation when you click on a news link or scroll, and become unresponsive several times, you click on another link or scroll down and it would scroll down than respond to the click a few moments later. Quite annoying.


About Chrome's CCT it doesn't say what it does in detail so I will not use it.
I'm a technically skilled user and I want to know what such software do before I download and run them and I don't trust Google when it comes to having my choice, interests and personal data in mind because Google only thinks of itself (experience).
It sounds like it will clear out my profile and extensions without asking. That's a big no-no.

I can do what the tool do manually if you explain it.

Thank you for providing more feedback. Adding requester "ashejole@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

Unable to reproduce the issue on Windows 7 using chrome stable M50-50.0.2661.102 by following steps mentioned in the comment #0. Observed no performance sluggishness on middle clicking the site (https://news.google.com/news).

labobolink@ - Is this issue seen on latest chrome versions? If yes, Do you remember from when this issue is happening on your machine? Is the same behavior seen on incognito mode as well? 

Could you please follow the below steps and try to reproduce this issue again, If issue still persists please let us know.

1: Click the Menu button (top-right corner of the browser, below the Close button), then click Settings.
2: Scroll down and click "Show advanced settings," then scroll down further until you find the System section.
3: Clear the check box next to "Use hardware acceleration when available (Disabling hardware acceleration may give Chrome a big performance boost)
4: Shut down Chrome and restart it.

Marking the above issue as Wontfix due to lack of user response and also issue is not reproducible on windows with latest chrome version '51.0.2704.106'.
However, feel free to report new issue if you come across this issue again with newer version of chrome.

Thank you!