Hello, I completely understand your frustration...
I've found that the default "🪶 General writing instructions" now perform quite poorly. The first and most crucial step is to create a Custom instruction set for your character. You'll feel a significant improvement immediately.
Also, it's important to remember that characters who were "tuned" to the old model will not behave the same on the new one. This means you'll likely need to manually review and edit your character's description/persona card to fit the new model's style for your specific story.
Frankly, the main thing that still bothers me about this model (even with all my tweaks) is that characters can become too rigid in their roleplay, sticking to their defined personality almost too perfectly. I'm currently trying to solve this by actively using:
The /lore feature for context.
The /ai + suggestion command to guide reactions.
Creating and editing a temporary character card on the fly as the story develops. It's a hands-on process.
Good luck with your stories! It takes some adjustment, but it's possible to get good results with a bit of extra work.