The power consumption increases with increasing message rate (i.e decreased message period), assuming that the channel is synchronized. During channel acquisition, search time increases with slower message periods, therefore power consumption increases at the slave.
Search time depends on the message period of the master. To reduce power consumption at the slave, without affecting search time, it is possible to decimate the message rate of the slave relative to the master. This is only possible if application is tolerant to missed data packets and increased latency. In order to maintain synchronization, the message rate of the slave should be a factor of the rate of the master, for example, if the master is configured at 8Hz, the receiver could be configured at 2, 4 or 8 Hz.
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