My unifi already turboed to 500mbps.

Based on TM Speed Test from my pc via wifi connection ... i am only getting around 75/65 DL/UL. My wifi adapter is capable of 300mbps.

Any idea what is wrong? My wifi is running on 2.4GHz channel. Router is DIR-850L. Channels are set to AUTO, but currently is connected to channel 10+6. I'm not hoping to hit full speed because I know there is hardware limitations on my side, but not even reaching 100mbps is kinda slow. On my crappy Lenovo I can only managed to get an average of 30mbps-ish download eventhough before turbo upgrade I can get near 50mbps almost every time.

On my mom's Samsung hp, connected via 5ghz AC managed to get around 100mbps download only.

Before upgrade, my unifi package is 50mbps and hitting max speed is not a problem. Should I ask TM?

Pujut 9B here

same here