The only area in which my website is below average in performance is “Specify image dimensions”.
I don’t understand this as, for just one example, I have made the image the correct size and even so have specified tie image size in Blocs. See images.
Can anybody advise me please?
This is the advice as shown on the GTMetrix site:
This is the ‘help’ as shown on the GTMetrix site:
This is Blocs showing the size specified: