Check whether all apps are slow or only one. Then check the eSIM's data balance, validity and any fair-use terms.
Try small checks first
- Confirm that mobile data is using the SimFuse line.
- Test a small webpage with Wi-Fi off so you know which connection you are measuring.
- Move to a place with better signal if safe.
- Pause cloud backups, large downloads and hotspot traffic.
- Temporarily disconnect a VPN to compare, then restore it if needed.
- If your plan supports another network, follow "No service, or connected to the wrong network".
A reduced-speed allowance, congestion, signal or routing can affect performance. A 5G symbol alone does not promise a particular speed.
Measure only if useful
A speed test can consume significant data. Run one if needed and record the time, network and country or city. Send support the result and what you already tried rather than repeatedly running tests.