You might try this: From the Finder, Cmd-Shift-A, which opens the Applications folder, then your first few characters, then Cmd-Down to open.
It seems like a lot of keystrokes, I know, and you have to switch to the Finder and it only works on initial characters (e.g. LIghtroom, not LightRoom) -- but since there's no search involved it "feels" extremely fast, which is often the thing that trumps all else.
It seems like a lot of keystrokes, I know, and you have to switch to the Finder and it only works on initial characters (e.g. LIghtroom, not LightRoom) -- but since there's no search involved it "feels" extremely fast, which is often the thing that trumps all else.