Anyone know how to improve the quality of uplaods here? Afte.. (OnlyFans)

Anyone know how to improve the quality of uplaods here? After I uplaod the pics they look so grainy and ick I don't understand why. On my phone they're clean and not compressed at all. Is there a setting I'm missing?

The one I sent in DMs is so clear and perfect but the last one is so dang blurry here on my main feed idk why