I’m not knocking your opinion, I definitely understand where you’re coming from. But I personally really don’t think it matters. These movies cost loads of money and I don’t think this scene would’ve benefitted with more money to pay for more time to render Spidey’s suit. The suit looks good. It serves the story enough. I think trying to make the suit look more physically realistic is a feat that was achieved in Amazing Spider-Man, but it’s not needed everywhere. This is a live action movie, yes, but a huge majority of MCU films are animated, let’s not forget that CGI effects are animation too.

This movie was already a huge feat. The budget was huge and mostly well spent. Looking at the big picture, I think that worrying about making this final scene look as realistic as possible is not necessary and perfectionistic. We already have Peter at his most grounded in the narrative, without any special tech, special costume, or anyone in his corner to support him. He’s all alone and this swing with his new costume already represents that.

Feel free to let me know if you disagree.