I go to Customize>>WooCommerce>>Product Images and set the resolution to exactly 1/3 smaller than it was,
search regenerate Thumbnails in plugins
Install regenerate Thumbnails
I activate Regenerate Thumbnails
Navigate to Tools → Regenerate Thumbnails and got 2 options 274 photos regenerate or 47 photos regenerate Thumbnails so i regenerate 47 thumbnails cause i just want to regenate the catalog thumbnails not all of my photos, the resolution after that on the Basic catalog Thumbnails was too bad, so i restore them to normal.
