This is a research paper uncovering the performance of .Net Framework apps when tested natively versus MSIX (with and without the PSF).
A Research Paper by Tim Mangan, TMurgent Technologies LLP.
The paper looks at a special purpose app with different internal workloads to highlight how app performance can vary depending on what the application is doing.
images/site/Research/MSIX/MsixPerf2/A look at Windows WPF Application Performance with MSIX.pdf