Adjust razer blade 15 (2018) keyboard with synapse 2.0?

Title basically says it all. I'm trying to not use synapse 3.0 as much as possible. It just eats too much ram. With 2 chrome tabs open I idle at around 34% ram usage and it drains my battery too quickly. I uninstalled it and installed synapse 2.0 and with the same 2 chrome tabs open I idle at around 27% which is quite a huge difference.

I just wanted to know if there was a way to make it work so that I can choose what color it makes.

Also, wanted to know if there's a way for me to choose the refresh rate with synapse 2.0 too instead of synapse 3.0 or any other way to be honest would be better.

Thank you.