sounds like your 'new' machine has a ton of malware running, or maybe the drive is fragmented
go to
www.filehippo.com and download and install the following and let them run when prompted
Malwarebytes
CCleaner
Defraggler
also download and enable MS Security Essentials if its not already running
plus go to
www.panicware.com and download pop-Up Stopper and make sure it is running