Image Presto offers four performance modes (1) UltraFast, (2) Fast, (3) Balanced, and (4) Quality.

The faster modes use less computational power and require fewer credits and are often able to produce output that is more than good enough.

Here is example output for the prompt: cartoon, female astronaut, drifting in outer space, detailed, beautiful, masterpiece, cinematic, dramatic lighting, epic, highly detailed, intricate, cinematic composition, stunning, award-winning, by artstation, by pixiv, by deviantart, by ArtStation, by CGSociety, by Behance

UltraFast

Fast

Balanced

Quality