Archer C7 "Switch" LEDs -- Override "Self-blinking"?

Hardware Questions and Recommendations
1

Poking around on my Archer C7 v2, I can get the "Sun" and the "Yin-Yang" LEDs to respond very quickly, such as to incoming traffic on a specific interface.

However, the five LEDs that are associated with the switch ports seem to have a "blinker" behind them that masks/ands with the trigger so that, for example, the fine level of detail that I can see on the yin-yang light is lost.

Before I dive down to the GPIO driver level, is this a "feature" of these five LEDs, perhaps as they are driven by the switch chip itself?

2

Looks like even writing directly to brightness (with trigger as none) is "masked" as well. The following Python 3 script (to get sub-second delay) shows the "writes" happening quickly with an argument of 0.1, but the light still flashes slowly and irregularly, "skipping a beat" every 4 or 5 blinks (which are happening about once a second).

import time
import sys
import os


delay = float(sys.argv[1])

while True:
    os.system("echo 0 > brightness")
    print("off")
    time.sleep(delay)
    os.system("echo 255 > brightness")
    print("on")
    time.sleep(delay)