I take a different approach. I can develop an opinion on something almost immediately, but the strength of that opinion will grow as the information I am presented does so too.
I don't think there's anything wrong with forming opinions based on limited information, in fact we need to do exactly that in order to function effectively.
I don't know the inner workings of many things I rely on in every day life, but I know enough in most cases to make reasonable inferences. Some of those inferences will inevitably be incorrect, but it makes more sense to accept a few losses where I'm wrong about something, than to develop strong opinions about everything, which is time consuming.