Amir, as a forighn learner of Russian you may do anything:)
You aren't obliged even to know Russian... so I don't see how it might be that you have to learn cursive.
But Russian use it. Some Russians start writing very fast and inaccurate (so the result is almost illegible:)) by the time they enter high school and university - and later start forgetting how to do this because mostly they use PC.
Others Russians' writing is clean and accurate.
But it is not the way it s with English: kids learn cursive and keep trying make it look accurate in primary school. There is a reason for this.
Notice that Arabic/Persian letters are desighned to be written with a pen on soft material.
The same with Latin small (lower case) letters: m,n, u - these curved shapes are intended for brush.
Latin capitals (M, N, V, T) came from Roman times and somehow remind phoenician letters. They make me think of stone:)
Russian lower case letters м, н, у - just repeat capital shapes. And what about д???
You will just never be able write т м н у д as quickly as you can write t m n u d.