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The sand is really too detailed for a logo and like some people already have said it kind of gives the wrong impression, slow instead of speedy.
You could keep the hourglass but separate from the text and simplify so it looks much more like an icon, ditch the colours until you have a design that works in black and white. It might work if you make it look telephone shaped
I think it would be better if you tried some different ideas, I would try something using the number 24 and some smashed glass
