I mean, do you understand everything without subtitles? Do you have to strain hard to make out the words? I'm asking because I have a pretty similar accent and way of speaking/
I also get the feeling the guy either has lived in the US or lives there now. Notice his use of the word "gadget"? That's a little old-school, like something my mom would say. It sounds like it's out of the 1930s-1940s to me. I wouldn't use the word myself. But some people probably still use it. Not sure if that word is used in the U.K; however, it's falling out of use in the US, but it is universally understood.