[Joke] If it comes up to the handle bars it isn’t shallow and how do you keep pedalling [/end Joke]
The rain blurring maybe as a result of the lack of frame rates (frames per second) and could be addressed by a model that supports better frame rates at the higher res. I would look for say 70 fps rather than 30 fps or less which many only support at high res or many even have these poor frame rates at lower res. Lots give higher frame rates at lower res settings but this leads to pixelation on enlarging and artifacts at higher res.
EDIT: I checked and 30 fps or less will have an element of motion blurring, it is what we usually see as we watch films or similar or watch youtube and similar online views. 60 fps will be much clearer and most cams do not support 70 fps or similar. They are generally 10, 15, 24, and 30 fps at high res settings. So if you want less blurring particularly if moving then 60 fps will be best for less blur but it will use about 2 and little bit times more data than 30 fps. I hope that helps in any issues. It also helps explain some of the reason for the blurry images further out in your captures along with the lens focus. It is important to note that the 60 fps must be the designed frame rate (base frame rate) for the dashcam not an interpretation of images just to increase frame rates as some then will increase blurriness and artifacts as the images are using software to add images rather than capture.
