Huddle community & e-learning

I am in my first month of using this app. It's pretty awesome how well it connects me to like-minded people (a club spread around the world). I am still learning how it all works, but it's pretty intuitive so far. My one concern is how slow my app responds. I live in North America, far from where the app is based. Each page / screen in the app has several seconds of delay after I click onto it before it shows me what is on the page. It's not terrible for me. I really do love it. Thanks Huddle! ♡

The second video as I scroll down a module is tiny but there is no option to get the video to fill the screen, and I can't zoom in on the video. This makes the footage so tiny that it is impossible to learn anything from watching it and I'm relying on audio only. Also, I have to keep touching the screen to stop it from timing out whilst a video is playing, but I don't have this problem on other apps like youtube.

Is there a way to keep the phone from turning off the screen when watching videos on this app? It's really annoying how any time I let a video run without touching the screen it times out and goes dark... please help!