Loading is lagging than usual

[VietlOtUs]

What could be the cause(s)?

What did I do previous to this?

1. I connected an external hard-drive via USB to my laptop. I transfered files to it and from it.



What can I do to confirm my mac is safe? 🙁

 

[LtRammstein]

Ummm... What?

Please provide more detail to what you are trying to say. I have no idea on what you are trying to say.