If you are planning to choose the right framework for your next project, I think Lumen vs Laravel performance comparison is really helpful for you. Laurence did that comparison in Medium. For your better understanding, I have just repost this article.
I ran an Apache Benchmark test against each route for Laravel (web), Laravel (api) and Lumen. I then re-ran those tests for a total of 5 rounds (as I found the tests results fluctuate by as much as 10% each round) and then averaged the results.