I think it is just misidentified servers. All the lawbreaker servers are showing as us but im getting 20-30ms from uk every game.
There are some hit detection issues in some games but i think they are related to there being no african nor , possibly, eastern euro servers.
So all these players are being shoved into eu servers with the resultant high pings.
There are south African players complaining about this on the lb forum and they are quoting 200+ms to eu servers.
This could be the source of your hit detection issues, and I dont think duma can do much about that.