What affects internet speed?
Internet speed (how quickly you can download and upload content) depends on several factors: Wi‑Fi signal strength, mobile network load, the number of users, and the capacity of cables and equipment. Above all it depends on the plan you ordered from your internet provider and the speed that plan allows.
Measured results are usually a few percent below the advertised plan speed. If the measured speed is substantially lower, run several tests at different times. If it stays consistently below the plan, contact your provider to investigate.