Firefox: Very low loadingtime

hi there. we face the same problem as edelmannpro (seen the other topic in this forum).

according to the problem of edelmannpro you wrote, that you can not see that his site faces a very slow loading time and you shared some screenshots. that is al right what you wrote there. the problem is:

if you load the any site using the qusq theme with the FIREFOX browser you will see what is wrong. With Chrome all is fine. But Firefox causes immense problems.

Any ideas? Would be great cause it is just like edelmannpro says: the theme can’t be used unless this bug is fixed :-(

Maybe there is a way to tell (Firefox) to load the site without that (very beautiful!) blurry load / blurry crossing? Seems like this causes the problem.

thank you so much in advance

Marcus