Thank you for stopping by funforme. I am not an expert in the settings, but keep it small is a good rule for video creation. I'd go no higher than 720p as it can slow down a lot of systems. I'd also check by loading similar video on YouTube and notice what works and what comes through smoothly.

I don't know why your audio wouldn't work. It might be Google Chrome. I find that works best in most situations. Let us know how it works out for you.