If your plan you activated replaces the plan on your own Bodily SIM, get rid of your physical SIM. Then restart your iPhone. Speeds are based on theoretical throughput and range depending on website situations and provider. For specifics on 5G and LTE support, Call your provider and see https://zionivuwt.blogthisbiz.com/19708422/iphone-14-pro-max-2-sim-for-dummies