GAL of Safari when it is on YouTube

Hey friends

For some time when I am on YouTube watching videos, gets terribly slow Safari, the mouse cursor lagging, and scrolling is not responsive. When to leave Safari and reopening of YouTube, it is very good for a short period of time, but safari then begins to not respond again.

I use Safari 9.1.1, on end of 2013 MacBook Pro retina, 256 GB, 8 GB, 2.4 Ghz

Does anyone have a suggestion?

Thank you for your help

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If you haven't tried this already, give it a try.

Go step by step and test.

1 empty Caches

Safari > Preferences > advanced

Tick the box "Show develop menu in menu bar."

Develop menu will appear in the Safari menu bar.

Click on develop and select 'Empty cache' in the menu dropdown.

2 Delete Cookies

Safari > Preferences > privacy > Cookies and other data from the website:

Click on the button "Details".

Delete all cookies except those from Apple, your internet service provider and the banks.

Tags: Mac OS & System Software

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