My first music video made entirely with the OP-Z, resolution question

Hey guys,

Would love some feedback on how you guys maintain a higher resolution when recording video from your OP Z?

I purchased an HDMI adapter for my iPhone but the capture on my laptop still seemed to be locked to my iPhone’s native resolution. The display using the adapter to my TV looks great though and seems to have no quality degradation at all.

Is there a decent option to maintaining a high quality resolution when recording, outside of using a larger screen iPad?

Video link above for those what would like to check it out, thank you!