There are Mac users who can't stand the sluggishness, as well as scrolling issues. Its not flickering (something reported with OS Yosemite) but choppy. I haven't tried on mobile (I don't have a mobile device).
So I ran a GTMetrix scan, and here are the results.
The PORTAL page is a WordPress...
Please, can you help me enabling gzip compression? I'm using nginx 1.7.10 with PHP 5.6.10 and I can't make it work for some files.
Compressing the following resources with gzip could reduce their transfer size by 172.1KiB (67% reduction).