Hi James,
I am John, an Independent Advisor and a Microsoft user like you. I'm here to work with you on this issue.
I am sorry to hear that you are experiencing this issue. It seems like you are turning on Filter Keys, which will slow down the rate at which the keyboard input will be accepted.
To disable this
1. Visit Control Panel > Ease of Access
2. Click Ease of Access center and select the option to Make the keyboard easier to use
3. Then click Setup Filter Keys
4. Finally uncheck the option to turn on filter keys when shift is pressed for 8 seconds:
This will prevent the keyboard ever going slow on you again.
If it does not fix your issue, please try following one by one and see after every step whether it resolves the issue.
1. Sometimes, add-ins can cause problems. To determine, if add-in is a problem start your application in safe mode and see if problem has gone away.
To start in Safe Mode:
Hold CTRL key and click on application icon and don't release the CTRL key till it asks you for Safe mode confirmation.
If yes, then start application normally and disable add-ins one by one and start application again every time you disable an add-in to determine the culprit add-in.
To disable add-in > File > Options > Add-ins > Down below you have Manage: Com Add-in : Press Go > Untick the Add-ins to disable and tick to enable them
2. Try repairing your office installation (Quick repair is good enough). Try repairing your Office installation. First try Quick Repair (takes 5 - 10 mins) , if that doesn't help then try Online Repair (Takes more than 30 mins but less than 1 hour in general)
Please see:
https://support.microsoft.com/en-us/office/repa...
3. Login to Windows with a new user profile and see if problem is resolved.
4. Sometimes, this is caused due to application not being able to access the default printer. Close all office applications and change your default printer through Start > Devices and Printers to another printer. It may be some physical one or One Note or XPS or PDF or anything else. If this is the problem, then you will need to update your printer driver for default printer.
5. Start your computer in Safe mode with networking and see whether the problem is solved. If yes, then some program is causing the problem. Many third party applications also cause the problem like Tuneup Utilities, Abby Finereader, Kaspersky / Avast Anti Virus etc. See if you have any of them installed. Close / Disable them one by one and see whether it helps.
Please see:
https://support.microsoft.com/en-us/help/12376/...
I hope it worked out well for you. If not, please reply back to this forum to let me know. I will be glad to follow up and help you.
Regards,
John