millisecond
A unit of time equal to one thousandth of a second. Used in technical and computing contexts.
この処理は数ミリ秒で完了します。
This process completes in a few milliseconds.
応答時
The average response time is 50 milliseconds.
Compound of ミリ (from English 'milli-') and 秒 (second). A straightforward loanword-based technical term.