Hi,
we have been sending out some newsletters about photographers, showing some of there pictures and in the last one ( Letizia Le Fur: from Canvas to Camera ) the images were loading veeeeerrrrryyyy slowly in our email-box.
What can we do to optimalise this ?
Is it better to use JPG or PNG ?
And what is the optimal size, so they are good enough quality but optimalised ?
Any other settings/edits we should do with the pics before we upload them?
Thanks so much !
Hi there 
You have two images on that page over 2MB, which is pretty big. I suspect it’s the biggest factor in them loading slowly.
In general, JPEG will give you smaller file sizes than PNG, and 2000 px width is a good size to aim for. I think https://squoosh.app/ is good for compressing images.
It also looks like your theme is loading the full-size image for the feature, instead of loading it responsively, which would greatly reduce the size. More information here: