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nrf52832 ESB tx/rx example MAX SPEED

Hello.

I'm testing ESB examples with nrf52832.
Want to understand which max speed I can reach with that protocol?
Some devzone info says that 1.8mbps can be reached.

But among with my tests I can't get such speed.
What I've done.
I set max 252 byte payload, use 2mbps baudrate, 16 bit CRC and no-ackn.
On transmitter side I send packets in a loop without any extra delay.
On receiver size I set counter to report every 1000 packets arrive.
I get it reported apx. per 1 second, which seems really slower than it says in documentation.
Maybe I can set smth extra settings to enlarge the speed?

Any suggestions?

All my best.
Ivan.

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