Asynchronous VWO code loads in parallel to your webpage code and does not affect the loading time of your website. You can set the time for which the asynchronous script will wait for the page settings to load, using the variable settings_tolerance. If the page settings load within this time interval, the code requests the VWO library (va.js or vanj.js) from our CDN and waits for the file to load at the interval indicated by the variable library_tolerance else the VWO code on the page will show the control version (original version) instead.
You have the option to use the jQuery of your webpage instead of the VWO’s jQuery. This typically depends on the jQuery version of your webpage. If the jQuery version of your webpage is similar or higher than the one used by VWO, your page can use its own jQuery. Currently, the jQuery version used by VWO is 1.4.2.
Accounts with IDs lower than the one specified above are unaffected and will continue to function normally.
To convert the VWO jQuery code snippet into a non-jQuery code snippet, set use_existing_jquery to true in your SmartCode.
The Workflow of Asynchronous SmartCode in VWO