Hi Trevor,
If the updates for the Surface Pro 4 were not installed accordingly, it may result to performance issues. What we recommend you do is uninstall these updates by going to your update history and uninstalling all updates added on August 09, 2018. To do that, go to Settings > Update & Security > View installed update history > Uninstall updates.
After removing the updates, download and run the Surface Diagnostic Toolkit. The tool will install the updates in the correct order to make sure that the device will be able to load the updates properly. Go here for more information and to download the tool. Perform a forced shutdown afterwards by pressing the power button for a full 10 seconds. As you restart the Surface, it should be able to run the software without any issues.
If you have other concerns, please respond to this post.
Regards.