Your probably not using the hammer drill correctly as well. The bounce part of a hammer drill needs to be allowed to bounce. People always try to push hammer drills into the concrete which does not allow the tool to do its job. The drill bit needs to bounce up and down as you drill. Most holes can be drilled quickly using only the weight of the hammer drill by itself while you're just hold it in place steering the bit.

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Drill in a 1/2" deeper than you need and don't worry about cleaning the dust out of the holes, who cares if dust is in the bottom of the hole as long as the bolt sets where it needs to set.