Is it possible to perform git bash scrolling?

I believe what you are trying to do is what this post here explains.

Below is a copy of the original site text:

  

The Windows command prompt (cmd.exe) has always been known for being   underpowered compared to Linux, but have you ever noticed that to view   the resort of the longest   scroll?

     

You can easily scroll with just the keyboard, but to get into the   "Scroll Mode" you'll have to use a 4-key combination that reminds me   of cheat codes on old nintendo games ... Up, Up, Down, Down ...

     

Press Alt + Space together, and then E, then L

     

This will put the command prompt into "Scroll" mode, where you can use   the Page Up / Down keys as well as the arrow keys.

     

To get out of this mode, you can hit the Esc or Enter keys.

Enable Quick Edit mode.

In Properties , on the Option tab - > Edit Option - > select Quick Edit and press OK.

(solution found in a Stack Overflow post in English , test and tell us if it worked).

Use ConEmu , open-source alternative to Command Prompt and Power Shell.