underperforming

Adjective

That performs less well than required.

Japanese Meaning

要求される基準や期待に対して、性能が劣る、または働きが不足していること

The underperforming server caused delays during peak hours.

期待を下回るサーバーがピーク時に遅延を引き起こした。

Sense（1）

That performs less well than required.

Underperforming operators will risk termination of their contracts.

more underperforming

（ comparative ）

most underperforming

（ superlative ）