@Amro__ 

Do you confirm that you've connected to the nearest AP? Please test the speed of transmitting to the EAP by unplugging the cable and connecting it to a computer. If there are a lot of network devices on the network, they will all use the bandwidth. As a result, individual users will experience slower speeds. You can also try to optimize the wireless network by relocating the AP, changing the channel, or making other changes to the AP's settings. You can also run the EAP in standalone mode to see whether the omada controller's settings have hampered the performance. Please try to read this article:Troubleshooting of Wireless Issues for Omada EAP Products