This plugin uses sqlx underneath which handles prepared statement caching. Regarding migration, we just used a coding agent to migrate our database infrastructure to it. It takes <20 minutes and remember this really only helps with static queries. We do support sqlc's dynamic queries though.
Tip: you can use case statements and etc. to create static queries even when you have conditionals.
Also, read https://news.ycombinator.com/newsguidelines.html#generated