Hello,

I can almost guarantee you there is something wrong with your Firefox :). Or maybe just some strange incompatibility with some of the other add-ons you use if you are still running Firefox 56 (next Firefox version 57 should fix this).

Anyway, New tab page must be loaded way below one second on every PC. I'm focusing on speed in all of my add-ons so this is just impossible :)

What should help you is "Reset Firefox" feature:
https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and-settings

Hope this helps, feel free to write me to my support e-mail if you have more issues :)

Have a nice day :)

Best regards,

Juraj Mäsiar