Filming with back camera

So I’ve just been starting trying to film with the back camera and although it looks soooo much better when it works out, it is such a more strenuous process.

I even bought one of those little MagSafe screen mirroring things that allows you to see the screen (that everyone is pushing on TT shop rn) but it lags like crazy (probably 30 seconds ish)

My main problem is I use a ring light I have to clip my phone into and when I use the back camera 1. I’m almost never in focus. 2. It takes so much longer to film content when you have to go back and forth and make sure everything looks ok.

For anyone who uses their back camera, are there any tips for this? Can I use an iPad or something instead of that stupid TikTok device thing? I love the quality of back camera footage but it literally takes me 5x as long to film anything at least.

Any help is appreciated. Thank you!!