Lightning problem. I can not freeze the frame I need, and remove the unnecessary one.

[Andy Reyand]

Hello! I'm making zippers for an experiment, and I ran into a small problem. I added two Force nodes for different levels of turulence in my lightning. Everything worked out, but only on the second frame (particles fly from the sphere to the surface in 1 frame, and only 2 frames live). And because of the strong turbulence, frame 1 and frame 2 of each lightning is very different, which does not look natural. Can I somehow "freeze" the second frame of the lightning by deleting the first and stretching the second frame by 2. So that the lightning does not change for 2 frames, and then just disappears without changing its shape? In the future, I plan to create new branches of this lightning. Thanks)
Deformation example:

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