need to remap the keymaps in finder

[XXiaoA]

I have the keymap like this nmap j gj and nmap k gk, which is not a rare case among vim user.
But this cause a problem: if we have a item more than one line in finder, like the following, we need to press j or k many times to jump to another item.

I know the suggested way to navigate is Tab. But I just enter normal mode spontaneously.

[XXiaoA]

same, i want to use <leader>r to make gpt respond, but i have some keymaps like <leader>rx. This leads to a conflict.