someone of something is slowing down my computer

Hello.

Check out these articles:

Next, scan (and disinfect, if needed) your PC with Bitdefender Rescue Environment:

You could also do the steps below.

Create a log file on your Windows device using Bitdefender Support Tool, by following these steps:

and

create a log file on your Windows device using BDsysLog, by following these steps:

Next, contact Bitdefender Consumer Support by e-mail:

with short description of the issue.

After that, you will get an automated reply by the Bitdefender Customer Care Team, with your ticket number.

Now, in reply to that automated reply, you can send the log files you already created in the first step.

Since you are all done, just wait for the support engineers to investigate your issue and find a solution to fix the issue.

Remember that the log files will help a lot to the support engineers for better and faster investigation on your issue and finding a solution.

Regards.