How We Increased Our Plugin’s Javascript Performance by 200%

Last February 2, 2017, Ann Taylor wrote the article 12 Things We Need to See From WordPress Page Builders in 2017 + Who Already Gets It Right in CodeInWP. We’ve been continuously improving Page Builder Sandwich for more than a year now: we do our research, listen to our customers, so we thought Page Builder Sandwich was gonna make it to CodeInWP’s “Who Got it Right” article. We didn’t, though, because of performance. So we asked Ann about it, and she replied:
…I played around with a free version a bit. It shows a lot of promise: lots of modules, pretty intuitive UI, great WYSIWYG experience, everything is dragged around easily. However, when I had around 10 modules on the page, it became hard to continue working with it because of low editing speed…
So according to her, Page Builder Sandwich has performance issues. And since we always listen to feedback, we checked it out.
Testing the Performance
We needed a way to check out PBS’s performance; since PBS mostly runs on the browser via Javascript, Chrome’s Timeline profiler was the right tool for the job. The timeline profiler can identify and measure which processes are taking place
Source: https://managewp.org/articles/14399/how-we-increased-our-plugin-s-javascript-performance-by-200

source https://williechiu40.wordpress.com/2017/02/15/how-we-increased-our-plugins-javascript-performance-by-200/