It is difficult for me to give you a clear answer mainly because I am not a parliamentarian. Common sense tells us that people should be more efficient and less impatient when they are less tired. It's human nature. People sometimes tend to forget that parliamentarians are human beings more than anything else. Break weeks can be beneficial.
As we can see in our current parliamentary calendar, in February, we resume work for a very short time before our first constituency week. All goes well. However, toward the end of the parliamentary session, in the final sprint of the somewhat extended sitting periods, there is more tension at times, probably because people are tired and the stress has accumulated. That said, parliamentarians would be in a better position to talk about it.
In your study, you need to determine how many weeks the government needs for its legislation. I always say the government, but there is clearly the opposition, which must also play its part. The issue of parliamentary control is also very important. You must determine how much time is needed and how Parliament can operate effectively. That is a very difficult thing to do, and it depends on the measures and bills that are challenged. Bills on which everyone agrees usually move forward quite well and quickly. However, when the opposition decides to fight tooth and nail against a bill, whether for ideological or other reasons, the government is happy to have those time slots to move the work forward.
In addition, even though the exceptional legislative procedure, like a gag order, is still an option, governments, at least Quebec's, are desperate to avoid using it. Having more time may help some bills to finally be passed, sometimes with opposition amendments, because the government wants to end the debate and reach some sort of consensus.