Yes. Use an application like Malwarebytes to scan for malware. Also, update your anti-virus application and perform a full scan of your system.
Remove all threats identified. Also, you should look at what applications Windows starts and has running when you start your system. You could have a lot of unnecessary applications using up resources legitimately as well.
Start with the scans first, though.
https
/downloads.malwarebytes.com/file/mb3/