I don t know  were is problem but the problem is in theme in frontpage cpu usage of my pc were i open your demo sites or my site witch i install your site in idle after is fully load the site using cpu 12% my cpu is very fast por I am wory for others witch visit my sit will have problem with them device  or compare the other sites in idle afer the site is fully load the crome using just 0.5% so in yours demo and my site in the this case crome using cpu 14 % or more  and where the site using the client cpu to much , i don't know how much cpu will use the server and will make the site not online in most cases please check where o the problem in you code because in all demos you have all are using lots of cpu resources and this is bad