Are there any performance issues or other adverse effects to leaving AT+QSCLK=1 set to allow the EC25 to go to sleep when it can?
No, sleep mode could save the power consumption.
The module will enter a low-power sleep mode, and some functions cannot be used normally, such as serial ports, USB ports, etc.
The USB port should be able to be used when using AT+QSCLK=1, but not the UART, I believe.
I’m just wondering if there may be some throughput delay when leaving AT+QSCLK=1 and the module needs to wakeup and transfer data (i.e. is there a long wakeup time and will it wait to go to sleep in a reasonable way such that this wakeup time does not impact data througput).