Honestly, it's a big conception that success in RTS games rely on high APM. Great strategy and macro will get you to the 99th percentile in most rts games. I notice that a lot of players that are in the lower percentiles are those who focus more on trying to improve APM rather than strategy or macro.
Infamously, successful SC2 pro player Whitera only had about 100-125 APM. I manage that pretty comfortably as a middle aged dude. I think you could definitely do more to de-emphasize micro, but even the big bad SC2 isn't as high-APM as people think.