The amount of time it takes to get the good result doesn't matter. It is only the result that counts in their minds. Sometime down the road, the two sides will have to come to a compromise agreement. It always happens. Before that compromise budget can be agreed upon, everyone will have to give up something.
Some time has to pass before anything valuable is given up.
Not only time has to pass. Every provision of the budget of each house is important to someone or some group. The someone or the group that supports a particular budget provision would be very upset if it were sacrificed without a good strong fight. Even after a good fight, there is disappointment when something is lost in a compromise. But without a good fight, there is more than disappointment.