confusion: What are the benefits of buffer and what scenarios need a larger buffer

[mudi-1125]

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I am reading the source code of vue-virtual-scroller. I can't understand the usefulness and usage scenarios of the buffer, when do I need to set a larger buffer, and what are its benefits. Every time you scroll, you need to recalculate the views. A larger buffer means greater performance consumption, and the smoothness of scrolling may be affected.

Hope to get your answers, thank you very much.

[yeminxuan]

Could this be to fix the white screen when scrolling?