Advice on writing a research paper in a less time
I think this question is highly dependent on your personal writing and working style. I can give some suggestions, but some of them will not be a good fit for some people, and I may not list many suggestions that work well for others simply because they do not work for me (or have not occured to me).


You may not need to write one paper faster if you can work on multiple papers concurrently. If you start four projects and it takes you a year to write a paper for each project, then you are releasing a paper on average every three months even if in practice all four papers took a year. This works especially well when you have coauthors since there can be a lot of time spent waiting for feedback or work to be done by others, which you can spend working on another paper.
One of the smartest and most prolific people I know has been rumored to tell his graduate students "just write it". I take this to mean "get a rough draft on paper quickly even if it is an ugly rough draft." Even if you have a lot of editing to do, things will become easier going from a draft rather than a blank page.
Time off can be just as important as time on. The mind is a truly remarkable thing, and in my experience, it works on a multitude of problems subconsciously. After I write an outline or a rough draft of a section or a paper, I don't try to edit and polish it immediately. Instead, it can be better to set the project down for a few weeks and work on other things or get caught up in your every day life. If one returns to a paper with fresh eyes, they are going to do a lot more quality work in less time than if they try to think, write, and edit all in a short time span.
Find a place to work that works for you. Everyone is different here. Some people need absolute silence to the point where they wear earplugs in a quiet space. Personally, I thrive in relatively loud, chaotic places such as busy coffee shops. I can get into the groove much easier there than say a library or my office, so I use this when I am trying to write.


These are the only tips I can think of right now. If I think of any other tips, I may add to this list later.