Germany doesn't have a jury system for criminal cases, France a more limited jury system and stopped using them for rape cases.
We don't use a jury in the court of appeal.
If we want people not to have to wait many years for a trial, then we'll have to change what we do now, its clearly not working.
At the end of the day, a trial is only as good as the evidence put in front of it and tbh, given some peoples stupidity in their voting choices, despite the evidence, i think i might prefer to be judged by professionals rather than idiots.
My cousin was a barrister, she also has said that many people on juries have zero understanding and often reach very strange conclusions.