If you're not 100% set on your current editor or would just like to see what else is available out there, then I'd recommend giving Atom a try.
I'm using it as my main editor on an older 2010 Macbook Pro and the only issues I've been experiencing with it are the slow startup time and auto-complete in php files causing a noticeable delay.
The git integration, community packages, and extensive customization options more than make up for those minor annoyances.
I may give it another try... last time I looked at Brackets and Atom, they were just slow... which surprised me when VS-Code wasn't too bad.. may check atom again.. but still using sublime most of the time.
Try switching from autocomplete while typing to autocomplete via keyboard shortcut and it may already make a big difference - this helped in my case with the php autocomplete slowdown.
I am not an Atom user although I have played around with it.
Is the 2MB limit really a problem? I always thought of Atom as a web languages editor not a heavy duty text processor like I think of programs such as UltraEdit.
I'm using it as my main editor on an older 2010 Macbook Pro and the only issues I've been experiencing with it are the slow startup time and auto-complete in php files causing a noticeable delay. The git integration, community packages, and extensive customization options more than make up for those minor annoyances.