Is it possible to set GPU priority when sequence rendering?

HI! I am a motion graphic designer making videos with unreal.

I am using a 2080ti and a GTX1060 graphics card together.

When rendering footage, the GTX1060 takes up 100% of the share, and the 2080ti doesn’t seem to work.

Is there any way to improve this? Would it be better to use only the 2080ti alone?

Waiting for your kind reply.

Thank you.