Hello there!
I’m working on a client project that needs a UI dynamically created based on a database. So far I’ve used HTML/CSS for the prototype: Cyber Threat Center | Dashboard 20210107 - PLAYCANVAS
The problem is bad performance (stuttering), especially on IE11, which is the browser the application will be running on mostly. 
Is there something that can be done to improve the performance? The Gunsmith example (Call of Duty Gunsmith - PLAYCANVAS) runs fine, so I assume there are ways to get a decent performance with a HTML/CSS interface. Or am I doing something completly wrong in my project?
Project Overview: PlayCanvas 3D HTML5 Game Engine
Thanks!
Simon
How do you reproduce the stuttering in your app? I can’t seem to move the view around or make something animate.
The camera should move by clicking on one of the orange indicators on the map 
On my laptop, performance on both the CoD and your prototype look similar in Edge. Do you have a link to the project overview page?
The issue is most prominent on Internet Explorer. If I remove all HTML UI Elements it’s much better.
Project overview: https://playcanvas.com/project/546260/overview/cyber-dashboard
Hmm… I can’t see anything obvious. I was wondering if you were changing/updating/writing to the document every frame/interval?
No HTML changes via an update function.
I’ll try to disable the event listeners, maybe they are causing the hickups…
i have a project with a good deal of html and have no problem just put everything that accesses the dom or any event listeners in the initialize function because if u put anything in the update function which is called every frame u are re doing all the doms calls that u put in the update function every frame and dom calls are pretty expensive 
