You can spend extra time on some problems but not on all of them, of course. The test is designed to force you to make some hard choices.
First, you need to make sure that you're using the correct mindset. Your goal is NOT to get everything right. The test will always just keep getting harder until it finds your limit, so if you try to get everything right, you will always run out of time.
Read this:
https://www.manhattangmat.com/blog/inde ... lly-tests/Now, if you are going over on just a few questions, but that time is actually paying off (and make sure that it is - more often, people do worse on the problems that take too long), then that's okay as long as you do have some problems on which you go faster (so that your time still averages out correctly).
If you are going over on a larger number of problems, you *might* still get away with this if you also identify the 4-5 hardest / longest problems in the section and guess / bail on them almost immediately.
But if you are spending an extra minute on every one of the 41 problems... obviously that's not going to work. :) If that's the case, then you're not actually approaching the test in the way that it needs to be approached. (See that article I linked above.)
I'm going to guess that you aren't literally going over by 1 min on every problem, but mostly on certain ones. So let's do some data analysis and figure out what's going on.
Use the below to analyze your most recent MGMAT CAT (this should take you a minimum of 1 hour):
http://tinyurl.com/analyzeyourcatsIn particular, pay attention to the types for which you are going significantly over time and how well you're actually doing on those problems (you may discover that the extra time pays off on some types but not on others). Also pay attention to where you can go faster and still answer correctly.
Figure out your strengths and weaknesses as well as what you think you should do based on that analysis. Then come back here and tell us; we'll tell you whether we agree and advise you further. (Note: do share an analysis with us, not just the raw data. Part of getting better is developing your ability to analyze your results - figure out what they mean and what you think you should do about them!)
Next, in terms of trying to become more efficient, here are some things you can do.
First, make sure you know the recommended process for each question type.
SC:
http://www.manhattangmat.com/blog/index ... orrection/CR:
http://www.manhattangmat.com/blog/index ... g-problem/RC:
https://www.manhattangmat.com/blog/inde ... rehension/RC also has reading-time issues; the above link will help with that as well. (And it will help with RC detail and inference. :)
Second, you will never be able to answer every question using all the time you would like to have. That's just how the test works. Part of your task is actually to figure out when to bail (and to have the discipline to do so). Good business people do this all the time! Read the Executive Reasoning article every day for a week or two until your brain has fully internalized this idea.
You mention that you are 3 weeks away from your test date. That may be enough time to address your timing issues, or you may need more time - it's tough for me to have an idea without knowing how severe the timing issues are. Just be aware of that and think about whether you would want to postpone the test date if it looks like extra time would be valuable.