Any Way Of Cleaning Ancient Coins Very Fast?

Sorry bud, there is no way of cleaning them without destroying them in one day. It takes patience. One day is enough to prep them to show details enough for trade and ID. You may be lucky, the dirt could be very loose or a 'sand patina' which doesn't need removing. Any fast method is prone to destroying the coin - a quickish method is using a soft copper brush to remove the dirt, but I have found this quite destructive. If you wish to risk it, try it with one coin from the lot, if successful it should be alright for the rest as they are probably from the same area - first, give em a soak in olive oil for as long as possible. Then, remove the oil with white spirit/acetone, then distilled water overnight and try the brush in the morning. the olive oil will loosen the dirt (but may weaken the patina ever so slightly) and the water will remove the ions which cause BD and help dislodge the dirt.

OH and

Sap: Many is the time I have seen genuine ancient silver coins with a bright silvery surface that is in the process of slow re patination. Perhaps these have been dug up, and have had the 'quick' treatment, albeit applied by professionals.
Before such coins are cleaned, they can be almost unrecognisable enough, not to be able to be identified properly.

I have seen quite a few ancient silver coins pass through leading auctions, that seem to have been treated by the 'quick' method, perhaps many decades ago.

A lot of ancient coins have needed harsh "quick" treatment, because the slow, traditional cleaning methods simply have not worked in getting off particularly nasty gunk. Silver coins buried in a salty environment, for example, can develop "horn silver" which needs particularly aggressive cleaning. It is "safer" to completely strip patina from silver coins, because silver patina isn't particularly deep and you don't tend to lose details when you strip it, like you do for the thick patina on bronze coins.