If you want us to help you will need to provide us with some more information as it is hard to know the fualt without all the details. Can you share screenshots of your betaflight configuration settings. Also have you connected your Rx via ppm or ibus? Ibus will be best as it usually has lower latency.
Lastly the best thing would be to look at a black box flight log. Because if it is a radio issue you will see the signal has a big delay as shown in this image
Where the throttle stick updates show a step in values rather than a smooth transition. This is from a customer issue we had and of turned out to be a faulty radio causijg this.
Other issues could be that your gyro update speed or loop time are too low sending us a CLI dump will help us see your settings