HI，all
I used cesium to create a 3D earth without loading any models or vector features, and then randomly rotated and scaled the camera. I found that the number of frames on a webpage sometimes fluctuates greatly, resulting in a 3D scene that doesn’t feel as smooth.
I try to use the browser’s performance debugging tools to find the cause. Among them, gc can cause stutters, but there are some functions that can cause stutters, but not some fixed functions. For example, sometimes it is Uri.normalize (), and sometimes it is Matrix4.clone (). It seems irregular.
This problem has caused me some problems. Has anyone encountered the same problem?
cesium1.66；
macos 10.13.6；
chrome 80.0.3987.149；

