这样将降低性能。

This will degrade performance.

除了大的邮件数据库，视图 ——尤其是收件箱 ——中文档的数量太多也能降低性能。

In addition to the large size of the mail database, the number of documents in a view -- particularly the Inbox -- can also degrade performance.

关闭显示列表来降低性能。

Disable display lists to decrease performance.

增加缓冲池是很少见的做法,事实上这可能会降低性能.

This is very unusual case of increasing your buffer pool size actually may decrease performance.

利用高增益天线和降低性能,可以把距离延长到一公里.

Range can be extended up to perhaps a kilometer by using high - gain antennas and reducing performance.

直接相连的通道会增加时间滞后, 即等候时间, 以及降低性能.

Directly connected channels increase time lags, or latency, and reduce performance.

利用高增益天线和降低性能 ，可以把距离延长到一公里。

Range can be extended up to perhaps a kilometer by using high-gain antennas and reducing performance.

如果文档非常大，DOM 就会变得对内存非常敏感，并会显著降低性能。

In cases where the document is very large, DOM becomes quite memory intensive and performance degrades substantially.

“在你需要前，数据都保持正规化”会降低性能。

A recipe for slowness is to “keep data normalized until you need it.”