Bobbye
Posts: 16,313 +36
I checked all the posts and don't see us asking this: are you using ANY add-ons, themes or extensions on Firefox. If you are, disable ALL of them. Check the system without and see if it makes a difference.
If it does, put them back on, one at a time, checking the Firefox performance after each.
If it does, put them back on, one at a time, checking the Firefox performance after each.