Better way to do green screen keying and color toning in UE5

Hello, I’m currently conducting a virtual filmmaking experiment using UE5 for green screen processes. I primarily rely on the Composure plugin for keying and compositing work. However, during this process, I’ve noticed that the keying capabilities of Composure are limited. For instance, it doesn’t work well with out-of-focus areas or achieve similar effects. This results in foreground elements being too sharp and disconnected from the virtual background in the final composite. Additionally, I haven’t found a satisfactory method for color grading the foreground in UE. Currently, I’m using the Tone Mapper, but it alters my color space. I was wondering if there are better methods for color grading camera footage in UE. If anyone with experience could share their solutions or ideas, I would appreciate it. Thank you!