We are particularly interested in Visual Composer Plugin. However, we got some feedbacks about page load speeds. Looking forward to hearing your thoughts If it happened to you
Cheers
There is no “one-fits-all” answer, as every WP setup is different.
While Visual Composer will add another complex layer to your site, right after your theme, its impact on system performance is mainly dictated by your server specifics, such as PHP memory, CPU speed, timeout limits, etc.
Naturally, the number and scope of other active plugins, your theme, and particularly any VC addons also matter.
A decent caching/minifying plugin will also make a world of a difference, when it comes to frontend performance.
I usually disable font end editor, it faster.