整体性能是指系统、设备、产品或服务的总体表现能力。这个词来源于英文 overall performance。

在英文中，常见的表达方式包括：

Overall performance: 整体性能
Overall system performance: 系统整体性能
Overall device performance: 设备整体性能
Overall product performance: 产品整体性能
Overall service performance: 服务整体性能

例句：

The company aims to improve its overall performance by streampning its production process.
该公司希望通过优化生产流程来提高整体性能。

We need to assess the overall system performance before making any changes to the design.
我们需要在进行任何设计更改之前评估系统整体性能。

The overall device performance was below expectations due to a software issue.
由于软件问题，设备整体性能低于预期。

The overall product performance was excellent in terms of durabipty and repabipty.
在耐久性和可靠性方面，产品整体性能非常优秀。

We will continue to monitor the overall service performance to ensure that our customers are satisfied.
我们将继续监测服务整体性能，以确保客户满意。