that is where metronomes can be useful again, if you want to practise two groups of tripets say dud dud or dud udu, with the aid of a metronome, you can find a speed you can play them at comfortably lets say 90, then you try 92, you can gradually build up your speed, within a month you cam probably play the triplets much faster.
here is a quote from an article that appeared originally in The   Northumbrian Pipers magazine.Nick Leeming
on keeping a steady rhythm. if you suspect you are a speeder, play along with a metronome.If you cant play steadily with a metronome after several tries, then you probably cant play steadily solo in a group.People advance all sorts of excuses[including would you believe, that the metronome is not keeping steady time], but the conclusion is the same if you cant keep pace with the machine you are not playing steadily. When questioned, a remarkable number of pipers admitted that they did not practise with a metronome because it was too difficult.That alone is a significant indication that a lot of pipers do not keep a steady rhythm whilst playing solo.
here is Nick playing the lovely air Derwentwaters Farewell
http://www.youtube.com/watch?v=R7Jpse4O2JQ