Need help Optimizing!

Ok so these are my settings
-NO GI
-Static and Dynamic batching enabled
-Metal Graphics API
-IL2CP SCripting backend
Script Call Optimization fast but no Exceptions

For my high poly FBX files (3 x 4 million each!)
-Mesh Compression OFF
-Read Write Disabled
-Optimize Mesh
-Import Materials

And setting Application.targetFramerate =60

Even with all these settings only getting 20-24fps on a iPad pro.

What else can I do (outside of reducing poly count) to further optimize playback(get higher...

Need help Optimizing!