Video editing is resource intensive and a gaming-class PC is often recommended - no matter what editing software is used. Some folks get by with lots less for simple projects.
If you can find a small shop that builds custom machines, they may be able to advise you on the 'sweet spot' for your specific needs, and furnish components of higher quality than a store-bought unit that often comes bundled with unwanted bloatware. The independent business folks don't want returns. _
Take a look here (and at similar sites you can search)... https://www.desktop-documentaries.com/computer-for-video-editing.html
While a powerful machine will speed things up, compared to an I3, it doesn't guarantee freedom from export issues. They may be caused by software memory limitations (VP is 32-bit for now) or by how a project is constructed.