It was too much, seeing Derek again, revealing to Kyle that he was his father, plus the "time lag" hadn't completely worn off.

发生了太多的事情，再次见到德里克，向凯尔透露自己是他的儿子，加上他还没完全适应穿越时空的“时间差”。

youdao

There's little (if any) perceptible lag, and this is a racing game we're seeing (as in that lag really matters).

ENGADGET

The second sentence is apparently a reference to another study, authored by researcher John Breitner and published in the Nov. 6 issue of the Journal of the American Medical Association, that indicated that estrogen replacement might help prevent Alzheimer's but also that there was a big time lag--about a decade--between taking the drugs and seeing any benefit.

FORBES: Magazine Article

Although consumers may lag in their understanding of the cloud, many large corporations have no trouble seeing the advantages, and are embracing it.

FORBES: Clueless About Cloud? Why It Doesn't Matter