Note: when building the portfolio pages, I found that it is may be better to export images out of Lightroom and then import those images back into portfolio. The problem with using the integration for Lightroom albums is that it relies upon Smart previews, which are a lower quality than what we get when exporting and importing back to portfolio. The difference in quality is mostly only apparent when viewing on a 4K display full screen, whereas there would be a little to no difference when viewing on a table tablet or not at full screen.