Hi Gartheal -
I'm Jerico T., I understand that you're having some issues right now and I'd be more than happy to help you today.
About the Microsoft Edge process, having many process tab is normal. Microsoft Edge is just making sure that if one of the tabs/process crashes, the rest of the tabs will remain open, unlike before, if any of the tabs crash, it will take down the whole browser completely. You can rest assured that your Microsoft Edge is running well.
About your concern that your computer is taking up 40% of your memory even when you're doing nothing, kindly try to perform method 1, and for the slow internet, let's try to check your Network adapters.
Method 1: Perform Clean Boot
- This process will eliminate 3rd party application running in the background of your computer along with services that are not needed to run windows. If there's any conflicting 3rd party application that causes the issue on your computer, this process will stop it. Click the link below for the steps.
https://support.microsoft.com/en-us/topic/how-t...
Method 2: Run the troubleshooter
- Open settings by pressing windows key + I
- Select Update and security
- On the left pane select Troubleshoot
- Under Additional Troubleshooter, click Network adapters and click the Run the troubleshooter button
Method 3: Roll-back driver
- Open run box by pressing Windows Key + R and type devmgmt.msc then hit enter
- Locate and expand Network adapters
- Right-click on the driver and select Update driver
- Select Browse my computer for drivers
- Select Let me pick from a list of available drivers on my computer
- Select any older driver from the list and click next
- Wait for the process to complete, once completed, restart your computer and check if it resolves your issue.
Feel free to reach back if you need any further assistance.
Hope this help. Have a good day.
Thank you,
Jerico T.