Simplify the following text for a Grade 13 native English-speaking person.
Original: Also a whole buffer of data is usually transferred sequentially ( for example to hard disk ) , so buffering itself sometimes increases transfer performance or reduce the variation or jitter of the transfer 's latency as opposed to caching where the intent is to reduce the latency .
Simplified: Also a whole buffer of data is usually transferred sequentially ( for example to hard disk ) , so buffering itself sometimes increases transfer performance .