There can be a variety of reasons why wired speeds are slower than wireless speeds, but the most common reason is the instability and interference of wireless signals. Wireless signals get interfered when they pass through walls and other obstacles, which can lead to a decrease in signal quality, which slows down the speed of the wireless network. On the other hand, wired networks use cables for transmission, the signal is stable and reliable, and there is no interference and signal attenuation problems of wireless networks, so its speed is usually faster than wireless networks. Of course, there are other factors, such as network equipment quality, network congestion, etc., that can affect network speed.