10 times for a 10 gallon tank would be 100gph, or about 1.7 gallons/minute...so about 17% of the water every minute...that's a crystal clear tank in just a few minutes!
Nothing wrong with excess...just remember...you're only really gaining physical filtration (and redundancy of course). The biological filtration, or the bacteria colonies in your tank, is directly related to the amount of fish and food waste available for it to process...dieing off and repopulating the colonies as needed.
Too much physical filtering doesn't do much because, if you clear your water of particles in minutes rather than hours, the amount of gunk in your filter at water changes will be the same.
So, since your physical doesn't change much, and your biological just depends on the number of fish and food you put in to your system...you don't really gain anything.
And...If you diffuse the flow enough you can have pretty high flow rates without disturbing even gentle flow fish. I say more flow to you!