urp) how to make character shadow

my game are many large objects around

Character shadow resolution is poor Even though the resolution is 4096

The shadow distance cannot be reduced much because of the background object shadow.

shadow cascades has performance problems

I buy 2 assets from the Asset Store

Dynamic Shadow Projector and shrap shadow

first asset not work terrain instace

sec asset vert/tri worst and Turning the shadow looks weird

Anyone have any good ideas?

ex) Circular or flat shadows are difficult to use.