Ah never mind, I guess my searching for other topics related to this was not thorough enough. I found the following thread:
Set the following to 1 in the usercfg.opt file:
DLSSG 1
Still, the end user should not have to edit configuration files to enable this feature.
With literally all settings maxed, including air, airport, and road traffic, I went from 15-20fps to 50-70fps in my test scenario.