Yep the feedback app is super slow. I tried to report a couple things a couple hours ago and once I filled everything out and went to submit the first of two I wanted to send it errored out and gave me a no internet (wifi+cellular) error. (Even though both wifi and cellular were working everywhere else.)
I'm going to give it a day or two and re submit.....and then submit one that the feedback app is slow
(kidding a bit on that last bit, unless it's actually still is slow.)