Comparison between stellar parameters of high-resolution spectra to degraded spectra at the resolution of KMOS. The y-axis shows the difference between low-resolution and high-resolution spectra, respectively, while the x-axis displays the value from the low-resolution work. The shaded grey area shows ± 1 σ levels for each parameter comparison. The mean difference and standard deviations are indicated at the upper right. The black dots show the SN sample, while the red dots the NSC stars from Nandakumar et al. (2025).