@oralhi 

Hi, welcome to the community.

Are there any specific features or improvements you wish to be implemented by Deco XE75 Pro, such as a higher speed and larger Wi-Fi coverage?

How much of your overall internet bandwidth?

First, you could refer to the compared feature list here:

https://www.tp-link.com/en/compare/?typeId=5700&productIds=63736%2C52192

Thank you very much and best regards.