Today I had a very annoying problem: E-texteditor was slow as hell. Besides that, he had over 50% cpu used. Uhm.. Ok, something is wrong when a simple text editor (ok, not so simple, but you get the point) is using CPU so intensive. I looked on forum and I found next solution (which actually works!).

1) First of all we need to make sure E is not opened (eventually look in Task Manager) and a command prompt: press win+r, then type cmd and press enter.
2) After that, you need to go where E is installed. Mine was (and still is ) in : c:\Program Files (x86)\e. If you have a 32bit windows, I guess you will find in c:\Program Files\e. Anyhow, the fastest way to find it is to right click on the E shortcut, choose properties then click on “find target” big ass button.
3) Next (and last) step is to launch the editor. So just type: e.exe --clearstate --clearundo

That’s all. Now I have a real speed boost and no extra CPU usage

ATTENTION!

Even though this is a good speed improvement, you will loose ALL undo and all opened files. So do this when you actually KNOW what are you doing