Mmakshak: The strongest trait in quartz-locked direct drive turntables (including the OP's), it's a strong sense of pace as well as dynamics and bass extension. These are the very traits typical of direct drive turntables. Plus, the SP 10 didn't come with a tonearm, so whatever it has is what someone installed on it, post-sale and there's no way we could know what it was.
The weakness in the SL12x0 series was vibration control and damping, which can be inexpensively treated.
Another solution is the new Pioneer PLX-1000, an SL1200-style direct drive turntable with three times the torque (talk about propulsion and timing!), built-in tonearm damping sleeve, damping sheets under the plinth and in the subchassis, and improved feet. It's $697.
The weakness in the SL12x0 series was vibration control and damping, which can be inexpensively treated.
Another solution is the new Pioneer PLX-1000, an SL1200-style direct drive turntable with three times the torque (talk about propulsion and timing!), built-in tonearm damping sleeve, damping sheets under the plinth and in the subchassis, and improved feet. It's $697.