I am putting a lot of effort in my practice but my performance is not improving in mocks. Will I perform better in actual cat paper?

Try to analyze your mock results, by judging how much time you devote to wrong questions, how many questions are unattempted, how much more you could have done, what questions consume lot of time. Accordingly you can identify weaknesses and focus and revise on them to convert it into strengths. For last one month, its advisable to revise mistakes and weak areas if any, and relax alot to stay calm for Final day. You should finalize your test taking strategy by this time. For mock exams go with websites like TestFunda, Oliveboard, HitbullsEye. Giving atleast 20 mock exams and rectification of repetitive mistakes is key to success in CAT, your score shall improve for sure.

Firstly assess your performance across test not as an absolute measure but relative to other people. For instance:
Test 1: Difficulty level: Easy. You score 150/300 and get a percentile of 95.
Test 2: Difficulty level: High. You score 100/300 and score a percentile of 96.

It might seem uncommon but the second stage is very much possible. So the idea is that you need to assess yourself on a relative scale.

Now, once you know whether your score is poor on a relative or an absolute score, you can assess your strength or weaknesses.

Sayyed - IIM Raipur

Normally yes.
In mock exams you compete with people who prepare for cat. At least half of people just write CAT without any preparation, so you can overtake most of them and your percentile in mock exams normally less than actual CAT. You may expect your CAT score as 40+( mock percentile / 2) if you take mock exams in a highly competitive mock tests like that of TIME.  For example if you consistently score 60 percentile in mocks, your score might be 40+ 60/2 = 70 percentile.

Basically your concepts are not clear and if you will keep giving the test without analysing your performance in the test you won't be able to judge the level of preparation and on which scale you need improvements.

Analyze the paper very carefully (it usually take hours to analyze a paper thoroughly).

Do not just memorise formulae. Understand reasoning behind them and question them consistently. This should be followed by playing around with the concepts and formulaes to suit specific questions.

Even after a lot of practice if you are getting such low scores, maybe you are over doing questions that is ending with many negative markings due to wrong answers.

Hope this helps you.
Good Luck!

Hi

Do not be disheartened. Take your time and focus on your strengths.

Take a look at the topper's interview and expert interviews:

https://www.careers360.com/mba/articles/cat-2016-topper-interview-konreddy-varun-kumar-reddy-99-percentile

https://www.careers360.com/mba/articles/cat-2016-topper-interview-saakshi-goel-99-percentile

https://www.careers360.com/mba/articles/cat-preparation-tips-time-director-manek-daruvala

https://www.careers360.com/mba/articles/cat-preparation-strategy