when i plug in my midi piano to use in fl studio, its very laggy, anybody know why?

Hey everyone! I have been incredibly busy the last few months and am going to be working on creating content and resources to help you all create the music I believe God has put in your heart to create! With that said, I was testing out some subscription styles and realized it wasn't fair to any of you to force you to pay for content I did not have and I have made this place currently now free of charge and anyone who joins at this present time can be a permanent member if you so choose! If you still have a trial or the system is telling you that you cannot watch certain videos, please message me and let me know and I will fix it for you! I really want to help you guys learn how to use FL Studio quickly and with ease! Thank you so much for your patience!