Immediate recommendation: enable personal tethering on the Apple handset and secure the session using a WPA2 password; prefer a direct USB Lightning-to-USB link for highest stability and speed, Wi‑Fi for convenience, Bluetooth for minimal overhead. Typical real-world throughput: USB ~50–500 Mbps (carrier and cable dependent), Wi‑Fi 20–150 Mbps, Bluetooth 1–3 Mbps. To set up: open Settings → Cellular → Personal Tethering (enable Allow Others to Join) – label wording may vary by OS release; on th...