Mancer AI Mytholite giving better results than OpenRouter Mythomax?

I've been trying to use up my remaining credits on OpenRouter, but I can't seem to get the same results I do on Mancer. I set the temperature, penalty, top K/P all to the same values as I have on Mancer, but some sliders are missing and overall the responses seem to be worse and shorter. If anyone has good settings for OpenRouter I would appreciate it!

I'm also confused on the System Prompt on the "AI Response Formatting" tab vs the Main Prompt on the "AI Response Configuration" tab. Mancer doesn't ask for prompts in that tab, so I'm not sure if it's the same as System Prompt.

​

Also, Mancer seems to always generate the max response length while OpenRouter sometimes only generates very short responses, is there a way to make it always generate as much as possible?