What version of Premiere Elements is involved and on what computer operating system it is running including a description of its resources?
What is the model/settings for the GoPro that is recording the video that you plan to edit with Premiere Elements.
There are many out there using Premiere Elements to edit GoPro videos successfully, but without further details from you that is just
a generalization for you.
Looking forward to your follow up so that we can give definition to what you seek.