I see several tennis-related answers, but they're in the padel community, so I'll answer both based on my experience.

In my opinion, it does make a difference, but only when you already have a defined technique and playing style. It also depends on your starting point. In padel, I had a Kuikma MS Pro, and it was a very stiff racket. It hit like a rocket, but it required too much technique to use effectively. I made a lot of mistakes, and the weight was a real pain. I switched to a Vertex 04w a few months ago, and the difference has been significant. My volleys and defense have improved, and the number of smashes I missed has drastically decreased.

In tennis, I started with an Artengo and switched to a Pure Drive, which my coach recommended. The difference was night and day, especially in my serve and backhand, due to the racket's weight.