Something appears to be hogging most of the memory (and/or CPU capacity) on your laptop. Open the Task Manager and click on the Processes tab to see if you can identify what it is.
Also scan your laptop for malware, which is a common cause of such problems. Download, install and run the free version of Malwarebytes Anti-Malware:
https://www.malwarebytes.org/antimalware/
(NB: When installing it, take care to deselect the pre-ticked option to take a free trial of the Premium version)