XV2-21X Slow Speed

Hello, we installed 1 XV2-21X AP last Thursday, users reporting (since inception) slow speed, the switch (EX1028-P) hardwired gets 900Mbps (New ISP), old WiFi AP was around 170 Mbps (OLD ISP feed) the XV2 provide about 2Mbps what users reporting, cnMaestro cloud show even less.
Where do I look for setting/options to change this ?
Users should get 150 at least on any device.
image
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AP Model: XV2-21X
Firmware: 6.6.0.3-r9 (recommended)

Let me know if anyone have some input on this.
Thanks

(Novice in cnMaestro)

go to AP
Then tools
Remote CLI
type “speed m” click enter
Show results

The NSE3000
2KDownload: 749.74Mbps Upload: 373.76Mbps

The AP

Device > speed m

Your IP is xx.xx.xx.xx Test server located in Vancouver, Canada Latency: 28.9ms Jitter: 17.0ms 2KDownload: 147.58Mbps
2KDownload: 177.49Mbpse[2KDownload: 186.48Mbps
2KDownload: 195.52Mbpse[2KDownload: 200.99Mbps
2KDownload: 203.41Mbps
2KDownload: 205.82Mbpse[2KDownload: 207.53Mbpse[2KDownload: 208.54Mbps
2KDownload: 210.06Mbpse[2KDownload: 210.27Mbps
2KDownload: 211.59Mbps
2KDownload: 212.28Mbpse[2KDownload: 212.76Mbps
2KDownload: 212.88Mbpse[2KDownload: 212.84Mbps Upload: 0.00Mbps
2KDownload: 212.84Mbps Upload: 135.08Mbpse[2KDownload: 212.84Mbps Upload: 128.12Mbps
2KDownload: 212.84Mbps Upload: 134.56Mbpse[2KDownload: 212.84Mbps Upload: 136.27Mbps
2KDownload: 212.84Mbps Upload: 138.86Mbpse[2KDownload: 212.84Mbps Upload: 136.53Mbps
2KDownload: 212.84Mbps Upload: 138.01Mbpse[2KDownload: 212.84Mbps Upload: 134.68Mbps
2KDownload: 212.84Mbps Upload: 128.62Mbpse[2KDownload: 212.84Mbps Upload: 125.67Mbps
2KDownload: 212.84Mbps Upload: 121.48Mbps
2KDownload: 212.84Mbps Upload: 117.47Mbpse[2KDownload: 212.84Mbps Upload: 113.27Mbps
2KDownload: 212.84Mbps Upload: 114.58Mbpse[2KDownload: 212.84Mbps Upload: 116.10Mbps
2KDownload: 212.84Mbps Upload: 116.11Mbps

Show wifi 5GHz config.

There is nothing changed form default other than name and pass

HI, Please refer this document about throughput validation available.