Tune in a Tube can really help reduce the twang and vibration in springers.
Top quality springers are usually pretty good right out of the box but even they benefit from an application of the red high-tack grease.
The cheap springers that I have worked on can really be improved with a bit of TLC and using Tune in a Tube grease usually makes a big difference.
I clean out all the factory grease and lubricate the rifle with some good stuff then break it in with a tin or two of pellets before disassembling to check the insides. After a through cleaning I remove burrs, do some polishing, change cheap hardware for quality stuff, check moving parts (add shims where needed, change roll-pin pivot points to solid pins) to make sure nothing is binding or too loose and check pistons and seals for damage. I use light machine oil, Lubriplate, Molybdenum (sparingly) on moving parts as required, a light coating of Lucas red-n-tacky (
https://lucasoil.com/products/grease/red-n-tacky-grease ) on the spring and spring guide and silicone oil in the compression chamber. The barrel gets a good cleaning and polishing with JB paste. I make sure all hardware is properly tightened and use (blue) Loctite where necessary.
A hour or two of effort and a couple of bucks invested is not going to turn a box-store magnum into a TX200 but it will go a long way to making it smother, calmer and more pleasant to shoot.
A word of caution, do some research before opening a springer, most require a spring compressor for safe disassembly. as the main springs are under a high pre-load.
Hope this is of interest.
Hank