I haven't noticed 2.4Ghz being "poor". GDPL Polling Test gives the following:Latency with the 2.4Ghz dongle is very poor with the Cyclone 2 so if you care about performance then just use a cable. In my test with a 240fps camera the analog stick latency was 6 frames (25ms) with a cable and 10 frames (41.6ms) with the 2.4Ghz dongle. It's not the most accurate test as my monitor is only 144Hz but it gives you a general idea.
(Both run 100 times and averaged out)
R Stick:
Polling Rate Max.: 1000 Hz
Polling Rate Avg.: 998.00 Hz
Stability: 99.8%
=== Refresh intervals ===
Minimal interval: 0.95 ms
Average interval: 1.00 ms
Maximum interval: 1.09 ms
Jitter: 0.02 ms
L Stick*:
Polling Rate Max.: 1000 Hz
Polling Rate Avg.: 996.02 Hz
Stability: 99.6%
=== Refresh intervals ===
Minimal interval: 0.86 ms
Average interval: 1.00 ms
Maximum interval: 1.16 ms
Jitter: 0.04 ms
(*I was a little slow pressing start, then moving the thumbstick on the second run)
I'm happy that the claimed speeds reflect almost exactly in the test.