We have an 8 year old [more or less?] Taz 5 runs well but there are two issues:
Recommendations? thanks!
Smaller filaments doesn’t add detail. Smaller nozzles and things like pressure advance and resonance compensation do.
Pressure advance can be done with a modern marlin firmware installed, but not resonance (at least not automatically).
Slowing down and stiffening the toolhead connection can make resonance compensation less necessary, and a Taz 5 is already slow enough it’s not a huge factor.
Sticking to the bed is almost entirely done with proper leveling of the bed, but smooth PEI is slightly trickier than a textured PEI sheet. With a 5, leveling is done manually, but a Taz 5 is also easily upgradeable with BLTouch if you do a custom marlin build.