Intersection that looks like a roundaround but not a roundabout near Traffikverket Luleå

It’s an intersection where Lulsundsgatan crosses Sundsbacken street, near Traffikverket Luleå.

There is a round bump in the middle of the intersection, like a roundabout. However, there is no roundabout sign, no give priority sign either so as I understand, the right hand rule applies here. I must give priority to the traffic coming from my right side. The junction is, however, very narrow for a relatively big car like Volvo XC 60. Especially when turning left at the junction, the turn is very very narrow. Must I avoid the bump in the middle completely or can I cross on it a little, like speed bump kind of thing? I saw some people just drove over it, but I don’t know if that is the right thing to do either. How is aspirant expected to do during the driving test at this kind of junction? Can one drive slowly (like 1st gear on a manual car, about 10km/h) here, or would that be considered as exessively slow for no reason?

Here is the google maps street view of the intersection.
https://www.google.com/maps/@65.5886589,22.1664122,3a,75y,224.17h,62.25t/data=!3m7!1e1!3m5!1s-7gv42xjAorxx16TfLascA!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fcb_client%3Dmaps_sv.tactile%26w%3D900%26h%3D600%26pitch%3D27.75%26panoid%3D-7gv42xjAorxx16TfLascA%26yaw%3D224.17!7i16384!8i8192?entry=ttu&g_ep=EgoyMDI1MDcwNi4wIKXMDSoASAFQAw%3D%3D