Add image quality adjustment option to Photoshop web version

I need to be able to adjust the image quality when I'm exporting / saving an image using Photoshop web version the same as the desktop version. 

Seems like an oversight to not have this basic image editor function in the web version.

Otherwise I have to create the image in Photoshop, and then use another image editing software to reduce the file size to make it appropriate for websites.