- rendering speed
- color range
Correct answer is:
Explanation: Finding the optimal settings for your image requires careful analysis along many dimensions: format capabilities, content of encoded data, quality, pixel dimensions, and more.
Experiment with optimal quality settings for raster formats: don’t be afraid to dial down the “quality” settings, the results are often very good and byte savings are significant.
Read more here: https://support.google.com/partners/answer/7336428