Recommendations to Optimize the Performance of your Website
After you build your site, we recommend that you deactivate all the widgets you don't use in Plugins > J&W Widgets, Plugins > J&W Custom Posts and the unused shortcodes in Plugins > J&W Shortcodes.
Remember that loading the unused parts of various add-ons may needlessly slow down your web.
We also recommend use of some PHP OPCache on your hosting - e.g. APC and XCache. On the WordPress side we recommend installing the W3 Total Cache plugin, in which is advisable to activate combination and minification of CSS and JS scripts and activate cache for clients (Gzip, file cache).