Core eye five here... never have had to wait for input. Takes a second or so to start. Any better and I wouldn't be able to perceive it. No HiDPI problems,

Core eye five here... never have had to wait for input. Takes a second or so to start. Any better and I wouldn't be able to perceive it. No HiDPI problems, perhaps a new icon theme? I'm sure Excel is better on many metrics due to investment, and if you are a spreadsheet-jockey that last 5% really matters. But, neither a factor here.