Rendering resulting in very pixilated images

I am in the process of making an animation (something very basic), and I’m trying to test out my renders to see if it looks alright in the full detail. I rendered one frame with 2000 samples, but I got very pixilated results. When I zoom in on the picture especially, it looks very edgy. Are there any possible causes to this problem?
Thank You!


Change resolution to 100%. If still too pixelated, increase rendersize and scale down the image.

when you render at 50% resolution you get an image that is 960x540 pixels…