Hi nicmar,
Welcome to the forum, and "hej" from your neighbor Denmark
Unfutunatly, i dont have much experience with IOS releases, but we have released a game for Android with CocoonJS (heavy physics) that run "okay" on new phones.
However, there is certainly a lot of problems with CocoonJS, so i would advice trying one of the other options.
- sorry i couldnt give you a better answer! someone else might!