企业面临着缩短交货期、提高产品质量、降低成本和改进服务的压力

The company is in the face of shortening delivery time,enhancing products quality, reducing costs and improving services.

我觉得这样就好，如果特意要突出压力这个词的。就用：

The company is under the pressure of shortening delivery time,enhancing products quality, reducing costs and improving services.

the enterprise is facing the pressure of shortening the duration of delivery,improving the products quality,reducing the cost and upgrading the service