Economic performance improved steadily.

———经济效益稳步提高。

Economic performance continued to improve.

经济效益继续保持增长。

Take the economic performance across the region.

拿整个地区的经济绩效来说，其表现一分为二。

Leveraged growth can improve a company's economic performance.

杠杆型增长能提升一家公司的财务业绩。

But in our simulation Britain's economic performance would improve.

但在我们的模拟中，英国经济成就会有所改观。