Please help me with my poor GTMetrix Performance.
Here is one of my url https://www.bmcsysteme.de/produkt-kategorie/pc/
I have test it with GTMetrix.com
The page speed is poor “Serve scaled images”. This is because the small images is scaled down from 1000×1000 to 75×75.
Sometimes from 500×500 to 75×75.
What can I do to optimize this?