Tick rate client and server

Good morning. Our game uses a 30hz server. However on our clients we had the unlimited tick rate. This created a huge bandwidth between client and server that caused lag and desync. We set the maximum tick rate at 60 ticks per second and networking benefited from it. However we wanted to ask you: if the server is at 30hz, does it make sense that the client is at 60? Is it better to standardize all the 30hz client / server parameters or are there other ways to prevent different players with different FPS from changing the bandwidth so frequently?