In case you face slow loading while using Visual Composer we recommend to check the following.
Be sure your hosting server meets the theme system requirements. Recommended PHP configuration limits fot LEVELUP theme are:
max_execution_time 180
memory_limit 128M
post_max_size 32M
upload_max_filesize 32M
max_input_vars 5000 (If the large number of menu items is used)
You use the latest versions of WordPress, the theme and all required plugins. Don’t forget to keep your site environment up to date. To find how to update LEVELUP theme and included plugins go here.
Sometimes there are issues with Visual Composer due to 3-rd party plugins which may break it. That’s why try to disable all 3-rd party plugins and check if slow Visual Composer problem persists.
Browser you use also may be a reason, as its performance and extensions you installed may cause slow VC editor problem. So try to open Visual Composer editor in other browser.
