but actually has actually produced far more hypos after overreacting to fast rising readings
Have you tried finding a pattern to when those steep rises occur?
You may be able to prevent them, instead of reacting to them.
Many of us have found that our food reacts much quicker than our insulin, causing those steep risings (which can then trigger a too early overcorrection with insulin, starting the whole rollercoaster).
There are a couple of approaches that may all work reducing the fast rising after eating.
1. How long before eating do you inject?
If you consistently see a strong rise before dropping again, it can help to inject a bit earlier. That way the insulin and food start to act more or less at the same time.
2. What insulin do you use?
There are now quicker acting insulins on the market, Fiasp (by NovoNordisk, which can be used in a reusable Novopen should you already use this for NovoRapid), and Lyumjev (by Eli Lilly), For some, including myself, those newer insulins work much faster, reducing the peak.
3. If you consistently rise after certain foods, you could consider changing the foods. I know I can't eat a bowl of cornflakes for breakfast or 3 rolls for lunch without getting a sharp peak, no matter what insulin I use. So I choose to eat something else.
With any of those approaches, you'll have to closely monitor of course, to see what works best for you and to prevent lows and highs.
Libre is very good for finding patterns, and trying to find ways to change those patterns.
It's not so good if it triggers you to act too quickly after your last dose.