I have done the profile cleaning routing (I think that&#x27;s something like the defragmentation runs of old...) and disabled all add-ons except for uBlock, Reddit Enhancement Suite and greasemonkey (for a total of 3 GM scripts).<p>I don&#x27;t understand what&#x27;s up either, but I have it both on my Windows work machine with a 4+4 core desktop CPU and 32GB RAM and my Macbook with 16GB.  After a couple of hours, I can type in a text-field and see the text lagging. On a 2.4Ghz machine.<p>I do have lots of tabs open, but since they only load on activation I doubt that&#x27;s the reason. Maybe it&#x27;s the Web Telegram app. It&#x27;s totally frustrating that I am not even able to find the culprit if there&#x27;s one since not even the dev tools have something like `ps -aux` to show what the tabs are consuming.<p>Granted, it&#x27;s gotten better with v.45, but still I just hope something useful comes out of Servo, and soon.