Problems related to parameter settings

Hello, I would like to know what the optimal parameter settings for the Pathrag model are? I found in the query_param that the default setting is top_k: int = 40 
max_token_for_text_unit: int = 4000
max_token_for_global_context: int = 3000
max_token_for_local_context: int = 5000 
This default value seems too large to me. It should be different from your optimal parameter settings, right?