Taken from [the MSDN](https://docs.microsoft.com/en-us/sql/database-engine/configure-windows/enable-the-lock-pages-in-memory-option-windows?view=sql-server-ver15):
Most pools are <abbr title="Pay Per Last N Shares">PPLNS</abbr> pools, which means that you only get paid when a miner on the pool finds a block. If the pool you are mining on is small, this can take a few days to weeks.