Shortening the springs is a common mod to improve ejector life. I used to chop all the ejector springs in my Perazzis by six coils. Did not impair the functioning at all tho they only toss the empties about four feet instead of ten. Last year I replaced all of the chopped springs with ones from J&P which are made to much the same length as the chopped springs and function about the same.
I use and recommend - first rate product
https://www.jnpgunsprings.com/index.php
FWIW I load the ejector springs with lithium grease before I install the things - so much that the initial working of the ejector mashes out the excess. Filling that cavity does nothing to impede ejector functioning and provide a nice waterproof for a part not frequently disassembled. AFA the ejectors proper are concerned they are regularly lubed with a teflon-loaded oil. Again liberally and excess just wiped away. Over the last 25yrs or so I've never experienced a single ejector problem of any kind - with any gun actually not just the Perazzis.
But, your guns of course so care for them as you best see fit