Consider using apsw instead of pysqlite for storage

[joachimmetz]

https://rogerbinns.github.io/apsw/pysqlite.html

[joachimmetz]

Does removing detect_types=sqlite3.PARSE_DECLTYPES|sqlite3.PARSE_COLNAMES from sqlite3.connect() impact performance? Determine why these parameters were set.

[joachimmetz]

Run comparison with profiling