Both programs aren't compatible with newer MacOS version.
The latest version of MacOS that will be worke for CS5 is Mac OS X v10.5.8 or v10.6 and for Premiere Elements Mac OS X v10.6 through v10.8
My System: Intel i7-8700K - 64GB RAM - NVidia Geforce RTX 3060 - Windows 10 Pro 22H2 -- LR-Classic 13.2 - Photoshop 25.6 - Nik Collection 6.9 - PureRAW 4 - Topaz Photo AI 2