I want to transfer metahuman facial animation to custom facial character with less blend shapes but I can't seen to do it, can someone help me figure it out

[Apple_Arts]

I’ve been trying to figure out how to transfer MetaHuman facial animation to a custom face that uses fewer than the 52 ARKit blendshapes for a project I’m working on. However, I’m not sure how to proceed with this. If anyone has experience with this workflow or knows how to achieve it, I would really appreciate some guidance.