magento2.3 – Magento 2.3 png gif Image quality are bad

Magento 2.3 png gif Image quality is poor, background not good, popup image is very large, but original image is small

Screenshot
1. Product view page: https://prnt.sc/q6cidb
2. JPG images are good: https://prnt.sc/q6cim6
3. but PNG, GIF files are not displayed well: https://prnt.sc/q6cii0

I can manage the image background with CSS, but the image quality of PNG is very bad