So I just got photoshop recently to start drawing , and For some reason its a bit laggy when I draw with different brushes or a HD page or less than HD page. Is there any way to Not make it Laggy or less laggy? if anyone knows or has photoshop can help me?

It could really depend on your computer! Photoshop can be hard to use on certain PC's. Are you sure your PC has the required specs?