1. may i know which version you use now? yes we have this issue on old version of the themes. but it fixed on version 1.1.0
2. hey thank you for your report. yes we also see this issue and will fix on next update. we will release hot fix update for this.
3. yes its happen when you using jnews speed. this mechanism is for better google page speed. we will improve this on when we update jnews speed. some user also ask the same right here : http://support.jegtheme.com/forums/topic/1-or-half-second-default-theme-color/