Selenide claims to solve problems like StaleElementReferenceException, time-outs, etc. (see https://selenide.org/documentation/selenide-vs-selenium.html)

Selenide is already used for some SaaS UI-tests (ask Jorge for detail).

Try it out in the context of the test-fwk.
Try write tests combining existing POs with Selenide
Maybe try to write/re-write/adapt current POs which ofen have issues,