Not to defend comparatively high lowest rpm on any brand/model lathe (and in today's tech age, there really is no excuse for the higher lowest rpm, either electronically or pulley size/ratio, or both), but the issue of out of balance rough blanks in general can partly be compensated for with more careful prep work at the chainsaw and bandsaw (or by using a carving axe on a chopping block) before bringing the wood to the lathe. More thoughtful prep work before mounting any piece of wood to any lathe is not only far safer for the humans in the shop, it also leads to less wear and tear on machines and tools, greater success rates for the wood chunks, fewer broken light fixtures and holes through walls... well, you get the idea.
Going off topic...
A carving axe, you say? Yes. And not your garden variety hardware store hatchets, either. For example, Scandinavian cultures have used small axes (aka hatchet), adz and knife for a thousand years to make daily use items for the kitchen and every other aspect of life. Here's a short video on safe practices at the chopping block. The piece of wood will be for a cooking utinsel. The same processes are used for bowl carving and other. Lots of videos and websites out there.
View: https://youtu.be/izS9gNc2ECg?si=1uD_WSyzv3WHZvaY
One of the best axe/adz bowl carvers out there today is a fella named Dave Fisher. Incredible work, all by hand tool. Take a look at this entry video of his, other available at Youtube and his website.
View: https://youtu.be/a5MM__p85EM?si=4vEnIl5RYX6kq--q
Well regarded carving axes in the 1 to 2 pound category are from makes such as Granfurs Bruk, Julia Kalthoff, Hans Karlsson (all Scandinavian) and Jason Lonon (USA). I own 2 sizes of Gransfurs axe, and a Julia Kalthoff axe, and a Lonon adz, all wonderful tools! These are tools that will last decades and generations. A $30 hardware store axe/hatchet is, frankly, crap. Soft steel and ill-fitted and shaped handles. If a carving axe and chopping block look intriguing and useful to you as part of your turning shop (they are!), you'll find lots of sites out there. "Sloyd" is another word to add to the search, referring to Scandinavian hand/craft work such as this.
My 12" diameter, 32" tall ash chopping block on legs, and Grandfurs Bruk "large carving axe". About 2lb. Makes very fast work of wood removal. I have 2 others in the 1 to 1.5lb range as well. Any lump of log, wet or dry, will work fine. Those legs are notched landscape timber and 1/2" x 4" lag screws