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Questions are …Is your Wi-Fi on your end devices 6E or 7? How many spatial streams? Are you really using that much bandwidth at once? Most APs use 30% to 50% overhead, they are half duplex. So there will be loss vs the max MCS index. Power of the AP also is relevant. Most advertisers lie about their Wi-Fi. Also Keep in mind the 6Ghz band in a lot of devices is shared across the three bands(for example Eero and uses a higher channelization, shares all 3 bands, which means less total channels and increases CCI, but it gives faster speeds. So in a non dense environment it’s fine.) if you can find an AP where you can use just the 6Ghz band then that’s the route I’d go. Also your devices need to be WPA 3 capable for use on Wi-Fi 7.
If you want to know max speeds look at an mcs index for 1-2 spatial streams and know only a few devices (MacBook Pro for example) use 3 spatial streams. The Wi-Fi 7 Intel card is 2 spatial and it’s only one of a few on the market.
Might want to test the cables, one of them looks rough and slightly bent, also if I you terminate again, make sure to only have 1/4” or less exposed for crosstalk issues.