FPS down when Memory change suddenly? how to avoid

Solar2D General Questions/Discussion
#1

Hi Community,
In my game project, when the memory usage change suddenly (from 700Kb reach to 800Kb), the FPS down from 31 -> 18 so it cause the lag(delay) transition of the drawing object. after change to 800Kb, the FPS seem to be fine (~31 FPS).
So how to avoid changing FPS when Memory change suddenly?

Thanks!
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