As above front is washing out due to your technique. I am rubbish at cornering “fast” (cough medium speed) and absolutely dire at flat corners where ime weight placement / technique is more important as you are not getting help from the ground.
You need more balanced weight on the bike (ie both wheels), the bike needs to be beneath you (as per video above), you should feel some weight on your inside hand, you should turn your hips and your head/eyes to where you want to go.
Book a skills course. I asked Jedi to focus on this with me (I fell off on the basic skills test and failed to go round one corner repeatedly on the correct line but I left knowing what I should do and 1 million percent better than when I arrived)
EDIT: that video @fast posted has some great tips, at the end he talks about how the front wheel is gripping and its ok for the rear wheel to skid. OP you are doing the complete opposite, rear wheel gripping front wheel washing out. You can practice on flat ground, even tarmac with a series of linked S turns – left right left right in a rhythm 🙂
Signed: Mincer who is a riding demon on the internet 😳