Incremental query vs Regular query

Hi,

I have a business case that need to send out the new subscriber on a daily basis. I am thinking to use the Incremental query to send email to new subscribers only. I wonder after one or two years later, will it slow down the workflow as it will need to find the new subscribers every time when the workflow runs.  Are there any downside using Incremental query?

Will it be easier just to use regular query and set subscriber create day = today?

Thanks,

Jason