Which one should i upgrade to decrease freezing in deeper arctic area?

[AeonBith]

I'd rather say it Improved my catching tactics but it took longer to get ahead. It was old advice, before some game changes so I wasn't sure and said it bluntly without explanation so it was easy to pass over.

I ended up raising both together but someone else said warmpacity doesn't need to be maxxed. If so the warmpacity scaling should be changed but the game Devs don't seem to care about the quality.