A DA revolver will always have a longer and heavier trigger than that of a SA semi-auto because the revolver must accomplish three tasks with each pull of the trigger (cock the hammer, release the hammer, rotate the cylinder) while a SA semi-auto only does one (release the hammer). Because of this, an out of the box trigger pull of 10lbs is not considered unusual or problematic on a DA revolver.
This does not mean, however, that a DA revolver cannot be shot as well or better than a semi-auto, only that a different technique may be necessary. One of the most common practices of those transitioning from a semi-auto to a revolver is to attempt to use the same placement of the trigger finger. Many semi-auto shooters place the pad of their first finger on the trigger as this is what gives them the best control with a SA trigger. While this technique works well with a SA, many people (myself included) find that placing the trigger in the distal joint of the first finger allows more leverage and better control when using a DA revolver.
Also, be aware that different revolvers will have different feeling actions. There are three basic action types upon which the majority of DA revolvers are based: Colt, S&W, and Ruger. The S&W action is preferred by many because it is the "smoothest" meaning that the weight of the pull is relatively consistent all the way through. The Colt, on the other hand, "stacks" most prominently meaning that the pull will become perceptibly heavier just before the hammer is released. Rugers are somewhere in between in that they stack more noticeably than a S&W, but not as noticeably as a Colt. Stacking isn't necessarily a bad thing but more a matter of personal preference: some like it and some don't.
Finally, small revolvers will usually have heavier triggers and medium and large frame ones. This is because the smaller, lighter hammer requires a stiffer mainspring in order to avoid light strikes and failures to fires. The exception to this is the Ruger LCR which has a surprisingly light trigger although it does seem noticeably longer than other revolvers of similar size.