A performance problem

[nkh0472]

After pressing the “开始” button, the animation will play normally for about 5 seconds.
After that, the animation will be extremely stuttering, and the animation frame of the original 20ms will rise to about 300ms.
The devtools performance tool analysis results suggest that this may be related to garbage collection after the JS heap is full.

The problem exists under the v1.6.4, v3.6.0, v3.6.1 of jQuery. So, the problem is probably not much related to dependencies.

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[nkh0472]

The duration of the normal state is variable: taking this picture as an example, the normal state only lasts about 2 seconds; while in the abnormal state, the interval between each rendering reaches about 1000ms.