First, have a look at the Dolphin 3.0 Netplay Guide; follow any steps that you might have missed.
Ideally, both of you should be getting 100% or close to it in order to avoid the desyncronization (desyncs) that you described.
Some people have observed Dolphin 3.0 (the last stable release) to be less prone to desyncs that newer GIT releases like 3.0-872.
Quote:Where the problem kicks in is at one hand the performance of the game ( best case = 80% Speed )
Ideally, both of you should be getting 100% or close to it in order to avoid the desyncronization (desyncs) that you described.
Quote:Should we use another dolphin version ?
Some people have observed Dolphin 3.0 (the last stable release) to be less prone to desyncs that newer GIT releases like 3.0-872.