Sounds like you got a good'n, DE.
...Won't be taking any big hogging cuts with it...
Maybe that's something we should discuss and share.
Cutting speeds at SFPM, depths of cuts, rate (feed rate per turn).
All different for the material, its diameter, tool stiffness/deflection, cutting edge and type, dry or oiled, roughing or finishing, lathe power, phase of the super moon, ...etc.
The published rates are based on maximizing production without too much sacrifice of tool life. A bit too much for my practices. For my little 6" Atlas, I use:
A mix of high-speed and carbide cutters, depending. Keep 'em sharp.
Frequently use the leadscrew for cut feeds, rate about 0.003" per turn.
Most of my turning is on pieces less than 1" diameter.
And, I'm usually shooting for diameters within 0.001" of target.
An old rule-of-thumb is best work on pieces 1/6th or less of lathe swing.
I normally run at rpms of 500-900, which keeps me below 200 SFPM.
For steels:
Max depth of cut: 0.005"
Finishing cuts: 0.002" - 0.001"
For aluminum and brass:
Max depth of cut:0.010"
Finishing cuts: 0.002" - 0.001"
My experience has been, for this old little machine, faster-and-deeper cutting starts getting deflections and heat, leading to heat, dulled cutters, inconsistant diameters, and sometimes gouging, usually on softer materials.
By referencing your manuals, experimentation, and practice, you should be able to find your own cutting parameters window...