2.4Ghz Network, using Realtek RTL8821CE, has very slow internet speeds

[chetp]

For some reason, my laptop, with the RTL8821CE network adapter, has super poor performance on my 2.4Ghz network.  My ISP plan allows up to 400Mbps.  Wired, I get over that on my desktop.  On this laptop, I get 200Mbps wireless on the 5Ghz network (is this acceptable? 50% reduction due to wireless?).  On the 2.4Ghz network, I get like 20-30Mbps.  On a laptop right next to it, I get 60-80, even going thru vpn.  I use a Netgear Nighthawk R7400 router, and the signal is strong.
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I've upgraded the driver via the HP Support Assistant, although it didn't do it until a diagnostic was run, not thru the driver update check, go figure. I've rebooted the router, modem (especially since I just upgraded yesterday.....so I have no idea if problem was before that or not as I usually leave on 5Ghz network). I've run diagnostics, etc, etc, etc.  Any ideas what the problem could be?
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My current driver is version: 2024.0.10.220

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Thx,

Chet

[Paul_Tikkanen]

Hi, Chet:

There is a newer driver than that one...2024.0.10.221

https://ftp.hp.com/pub/softpaq/sp112501-113000/sp112619.exe

After you update the driver, if the wifi is still lousy,  see if this helps...

First open the start menu, search for “Device Manager” and click on the first result to open the Device Manager.

Then after opening the Device Manager, click to expand the “Network adapters” section.

Find the “Microsoft WiFi Direct virtual adapter” option, right-click on it and select the “Disable device” option.