The optimal weight of a photo in an online store?

Question

Photo

Hello. How much should a product photo weigh optimally? There are 4 photos per product page. What should be the optimal weight?

Answer 1

Less is better. Drive through the optimization as Anton correctly noted and look at the acceptability of the quality. Again, it is not necessary to upload all the photos at once. One main at once, the rest in the background.

Answer 2

within the normal range

Answer 3

Around two hundred kilobytes.

Answer 4

All the same, everyone uses the same formats, everything depends on the required quality.