Can't get 150Mbps speeds on wifi HP 2000-2b22DX Notebook

1. What performance do you get if wired directly to the router?
2. How far away is the laptop, when on WiFi?

(I have that same router. 75/75 FiOS)

Even if you get 150Mbit link speed (you can check that in network manager, or task manager), you will only get about 1/2 that speed in throughput. Why, because WIFI is not full-duplex. Your laptop can only send OR receive at any point in time. So up to 1/2 the time is spent waiting to send or receive. To get 150Mbit throughput you need 300Mbit link speed.

You can get a USB ethernet dongle. 10/100/1000.
$15 and up:
https/www.amazon.com/s/ref=nb_sb_noss_2?url=search-alias%3Daps&field-keywords=usb+ethernet

Full vs half duplex can make a difference, but not in this case.

As best as I can tell, that laptop only supports 2.4 GHz WiFi.
https/h30434.www3.hp.com/t5/Notebook-Wireless-and-Networking/WiFi-Connections-HP-laptop-unable-to-find-5Ghz-wireless/td-p/3300523

The problem is 2.4 GHz is so narrow and crowded that it's virtually impossible to use the wideband 40 MHz capability of 802.11n at 2.4 GHz. Consequently, its max nominal connection speed is 150 Mbps. That is the link speed, not the data transfer speed. About half of that 150 Mbps is used for error correction algorithms. So it can hit 75 Mbps easily, and based on your experience it can manage to eek out 90 Mbps. But that's it. The rest of the bandwidth is being taken up by error correction coding which can't be turned off.

If you could use 802.11n's wideband capability (using 40 MHz of bandwidth instead of 20 MHz), that would bump up your link speed to 300 Mbps, making 150 Mbps data transfer rate possible. But it's highly unlikely to work at 2.4 GHz.

Both the Negear and Belkin routers you've listed are dual band, so support both 2.4 GHz and 5 GHz. So a laptop which supported 5 GHz 802.11n might be able to get 150 Mbps data rate. But as this laptop's WiFi card doesn't appear to support 5 GHz, your only option would be to upgrade the WiFi card. Unfortunately I can't confirm exactly what WiFi card this laptop uses (there's a common mini-PCIe style which everyone uses nowadays, and a really old larger style which isn't supported anymore). The best I could find was this video. Watch it and see if it appears to be the same as your laptop.

https/www.youtube.com/watch?v=CcXmvCtHapI

If it's the same, then yes you can upgrade the WiFi card. It's just like replacing a PCIe card on a desktop. You swap the hardware, then install drivers for the new hardware. I'd recommend a 802.11ac WiFi card, as that is more likely to be able to hit 150 Mbps than 802.11n. That 40 MHz wideband feature of 802.11n doesn't always work. And your Belkin router supports 802.11ac.

You can get a USB ethernet dongle. 10/100/1000.
$15 and up:
https/www.amazon.com/s/ref=nb_sb_noss_2?url=search-alias%3Daps&field-keywords=usb+ethernet