MARK4 V2 10inch 425mm Carbon Fiber Frame Compatible 3115 Motor 1050 Propeller for RC FPV Freestyle Long Range Drone DIY Parts (1PC MARK4 V2 10inch)

I am being completely serious and please don't take it the wrong way, but the only way to go is to replace this frame with a carbon fiber one. I am also not going to tell you to get high end gear either, but there is a bit of a minimum cost of entry here. For around $60USD you have this option: https://www.amazon.com/TEHAOUU-MARK4-13-Inch-Carbon-Reinforced/dp/B0F6V4NT6L/ref=sr_1_7 Which is a 13" carbon fiber frame. It will fit the 11" props you have currently. The motor should drop in too. This is not a high end frame at all and X-class 10" drone people ridicule it- but it is still infinitely better than the FlameWheel derivative you have now. It also should have enough room to mount your other electronics too. When you look at the difference in stiffness it should make sense right away. This is a smaller frame for around $30USD. Even this frame - which I personally own several of - is cheap and STIFF - https://www.amazon.com/10inch-Carbon-Compatible-Propeller-Freestyle/dp/B0DP7CGFCQ/ref=sr_1_7 This frame will NOT fit the props you are using currently, but if you drop to 10" they will fit. Be aware that at 10.1" the prop tips will very nearly touch lengthwise so it is a close fit. The props you already have (in my opinion) seem a bit too big for the relatively small motor - despite the lower KV that you have currently. I got one of these F550 derivative frames explicitly with the sold length channel in them, compared with the tesselated plastics in them with the intent on building a sleeper drone, augmented with a square tube 8mm carbon fiber backbone, but deemed it was just not worth it. Because of so many reasons. So I have this frame lying around for now- I will probably make a video soon highlighting why this is the symbol of failure for custom drone projects. I hope this helps.