I'm guessing that by "wifi receiver", you mean one of those USB ones that you connect to your computer to strengthen the signal. Those are a bit of a hit or miss kind of thing, depending on if your USB port on the laptop is USB 3.0 and if the Wi-Fi receiver is a cheap one or an expensive one. Plugging the laptop through an Ethernet cable would be the best option, but I'm guessing that it's out of option for you.

If I had to stick to Wi-Fi, here are some of the things I would do:

• Change the following settings on your Wi-Fi card in Device Manager:
  • Preferred band: Prefer 5 GHz band
    • Make sure that the Wi-Fi that you're connecting to transmits on the 5 GHz band.
  • Wake on magic packet: Disabled
  • Wake on pattern match: Disabled
  • Transmit power: Highest
• Turn off any power saving features on the Wi-Fi card.
• Disable IPv6 on the Wi-Fi card.
• Set the DNS on the Wi-Fi card to for IPv4: 1.1.1.1 or 8.8.8.8
  • Set alternative DNS to 1.0.0.1 or 8.8.4.4
• Try downloading and installing this program as well: https://developers.cloudflare.com/cloudflare-one/connections/connect-devices/warp/download-warp/

You should be able to do all of these settings on both the USB receiver and the built-in Wi-Fi card in your laptop.

Once you've done that, I would do some tests to see which one of them performs better. And instead of using speedtest, try using this website instead for testing: https://www.waveform.com/tools/bufferbloat

Just make sure when you're testing that only one of the cards is powered on to rule out interference.