For my research, i have 2 devices (Raspberry Pi and Laptop) connected to same router by cable and running speedtest by ookla software to the same server with ping, download speed, upload speed parameters.
in my experiment, the ping result between Raspberry Pi and laptop has differences around 20ms (ex. laptop 4ms raspberry 24ms) but the download and upload speed not much different.
Why only latency that have different result? which components on the device that affect the latency? . It is possible that I might misunderstand a few concepts here. Any help would be greatly appreciated.