SQLite Forum

Coverting 305GB CSV to sqlite database
See if the limiting factor is CPU, DASD (I/O), or RAM.  Once you have identified the bottleneck, then go to the bank and get some money so you can go to the store and buy a bottle (CPU/DASD/memory) that has a bigger neck to replace the bottle with the small neck.

You have provided no information which could be used to generate any other process improvement.