low oil pressure

I have heard the famous hemi tick is likely caused by low idle oil pressure. The main fix is to replace oil pump with a "high flow" model. I dont want to tear a good motor apart for that. What's a good way to add rpm to idle? I also have a Ram warranty I would prefer not to void. Im open to...

I changed my oil and the next day when I started it, all was good. Two starts later the low oil pressure light came on. The pressure showed 5. Checked the oil level , checked for leaks, checked for loose oil cap. Proper oil level, no leaks, and tight cap. Then I discovered that this is an...