Not a windows user here but I remember that you can do something like this using...

ashray on Feb 7, 2013 | parent | context | favorite | on: Why don't websites immediately display their text ...

Not a windows user here but I remember that you can do something like this using Task Manager. Just right click on the process and see if you can set the CPU affinity or something similar for your browser.

philbarr on Feb 7, 2013 [–]

Fantastic tip, thanks! Right click the process and "Set Affinity..."