UserAgent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.94 Safari/537.36

Steps to reproduce the problem:
1. With a page insert a few (like 4 or 5) tables within a page with tinymce javascript WYSWYG editor
2. Try to write something else in HTML format
3. The typing becomes really slow

What is the expected behavior?
Regular typing should be expected; if you remove tables then everything works as usual.

What went wrong?
Something's wrong rendering tables on last Chrome Window versions..... 

Did this work before? Yes 3 months ago 

Chrome version: 50.0.2661.94  Channel: stable
OS Version: 10.0
Flash Version: Shockwave Flash 21.0 r0

We've verified it works on the very same version on Linux. This is a Windows-version related problem