Please give yourself a chance to learn about the software instead of jumping to conclusions.
Generally, Photoshop is used to manipulate a surface. There isn’t anything going on behind it like rigging, motion or deformation. It is vital to the work that you see immediate and accurate results on screen. Comparing Animate to Photoshop is apples and oranges.
Animate uses Open GL. As with 3D software, you don’t judge the final output by the work-in-process screen representation. It helps when the work-in-process is a representation that provides the information necessary to be productive. But the final output is going to be superior to the stages leading up to it. You have posted a screen capture of the work-in-process representation. Did you export anything to an actual image file?
What you see most likely can be improved with hardware and settings.
What hardware are you using including the operating system and graphics card?