This fork just adds the ability to show more than 15 processes in the CPU & RAM list in the menu dialog.
I tried to get this merged but my PR was closed without any reason provided, hence this tiny fork.
I find this app much better than the activity monitor because it combines the ram usage from all processes related to an app together so it's easier to understand what's causing issues. It's also always shown in the menu bar which lets you always know exactly why your mac is lagging.
To install it using Homebrew, open the Terminal app and type:
brew install --cask maddada/tap/stats