Flags for improving scrolling and battery life???

Thanks to everyone for the suggestions.  I went ahead and installed the canary build for the extra features.  I decided to try out Edgeium on my Surface Go which already struggles with battery life, so every little bit helps.  Hopefully, new Edge will have the same battery life and smooth scrolling of old Edge. (Granted, I'm not holding my breath on the scrolling)

As Ryan mentioned, the most effective one is that
"Turn off caching of streaming media to disk."
but you'd have to use Canary channel instead of Dev.

leave the rest at default values to prevent instability.

for scrolling, go to edge:flags and type in "scroll"
then try each one of them Yourself and keep the one that you like enabled and revert the other ones back to their default values. because you're using Touch screens, and i assume tablet?

smooth scrolling for example doesn't show any noticeable difference, maybe because it's enabled by default. and since the majority of flags don't tell you whether their default value is enabled or disabled, you just have to try it yourself on your Touch screen device.
🙂