Usually, compression testers have a check-valve that doesn't allow pressure to leak back into the cylinders.

Does your tester not have a check-valve or did you remove it?

Also, even "good" cylinders leak down after a relatively short time.

That said, if the compression is Ok according to engine specifications and within around 10% cylinder-to-cylinder, highest to lowest, your rings "may" be Ok.

A test is squirting some oil in the cylinder and retesting to see if there is an appreciable rise in PSI.

The oil-burning "may" instead be as result of valve-seals, worn valve-guides, leaking intake-manifold gasket, etc

I had similar results on an engine I tested a couple months back. Though the engine had had a complete valve job with new seals around 8-months earlier, I replaced the valve-seals and that stopped the oil burning.

Another Moparts member recently had an intake manifold, leaking oil from the underside into the cylinders.