Hi, I have a requirement to move data from Postgres to BigQuery using CDC. what is the most efficient way to achieve the performance improvement in the data load ?

I'm not certain what you're trying to ask. If you're asking how you can speed up the process of setting up the source, destination and connection and get the sync happening, you can use Octavia CLI. Otherwise, just start reading through the docs site: https://airbyte.com/connections/PostgreSQL-to-BigQuery