When you set up your business page, you may have uploaded whatever images you had handy and maybe the logo in your profile image is a little blurry. 
However, you should be sure to use a branded photo for your profile.
You want to make sure you have a high-resolution photo for your Facebook profile photo and if your brand is represented by your logo, make sure it’s your logo. If it’s a caricature similar to mine, put that in there or make sure you have a clean, high-resolution photo, something you can see your face very clearly on.
First impressions count, so choose photos purposefully.