How make SQLAlchemy faster?

Why is SQLAlchemy so slow?

At the ORM level, the speed issues are because creating objects in Python is slow, and the SQLAlchemy ORM applies a large amount of bookkeeping to these objects as it fetches them, which is necessary in order for it to fulfill its usage contract, including unit of work, identity map, eager loading, collections, etc.

Is SQLAlchemy faster than SQLite?

Interesting to note that querying using bare sqlite3 is still about 3 times faster than using SQLAlchemy Core.

Which is faster SQLAlchemy or psycopg2?

The psycopg2 is over 2x faster than SQLAlchemy on small table. This behavior is expected as psycopg2 is a database driver for postgresql while SQLAlchemy is general ORM library.

Is it worth using SQLAlchemy?

SQLAlchemy is great because it provides a good connection / pooling infrastructure; a good Pythonic query building infrastructure; and then a good ORM infrastructure that is capable of complex queries and mappings (as well as some pretty stone-simple ones).