Hi Lucas, the 160's for sql-executor service is set on our side. However, I am currently reviewing this with our team if this is something that we might be able to change for you. However, in the meantime, have you tried the performance tips mentioned in the documentation?
https://www.gooddata.com/docs/cloud/connect-data/create-data-sources/postgresql/
Performance Tips
If your database holds a large amount of data, consider the following practices:
• Index the columns that are most frequently used for JOIN and aggregation operations. Those columns may be mapped to attributes, labels, primary and foreign keys.
• Define partitioning to improve performance of visualizations that use only the recent data.
This feature strongly relies on the version of your PostgreSQL Version database, so check the official user documentation for your version.