Hello yashir,
Hope you are doing well.
As per your query, you can surely give more time to your strong subjects and less time to Mathematics if you are not that good at it, but make sure to at least give it that much time so as to get passing marks in that subject. as apart from your best four, your passing in all subjects will also matter.
And if you want to further pursue any such course which requires you to have maths as a compulsory subject in your 10+2, then there your average percentage for admission will be calculated including your Maths marks which can further lower your score. So, decide wisely taking all the other things into consideration.
Hope this helps you.
All the best!
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