I am using jstree (jQuery component) in one of my lightning component and i am experiencing unusual delay after turning on Lightning LockerService Security, this delay is noticeable in hover, scroll and click events on jstree nodes
Refer the screenshots
Before Enabling Lightning LockerService Security
After Enabling Lightning LockerService Security
Looks like h and l are the methods which are taking more time these methods are from aura component (aura_prod.js)