Streets ahead (of somebody/something) British phrase UK informal
Superior to someone or something else.
Jack is streets ahead of other contestants in swimming contest.
Mary is streets ahead of all other students in Math.
Linda's essay is streets ahead of other ones in the class.
At a much higher level than other people or things
To be better or more successful than other people, companies, or countries in a particular activity
To be more expert at something than others are.
1. Used to say that someone or something is much taller than someone or something else
2. Used to say that someone or something is far better than someone or something else
If you say you beef something up, you mean that you improve, strengthen or make it more interesting.