The br of the OBJ 120 is high at 8.0 in ground rb, the only advantage it has compared to other vehicals is its HE and APFSDS shells where the apfsds does the same damage as most apds shells post penetrations
In the same br you are fighting vidar/pzh2000 with lrf / thermals
at 8.3 you can meet vehicals such as the turms 3 with a 30mm and a 105mm(stabilized) with 5sec autoloader
Its is just not good enough at 8.0 , moving it down to 7.7/7.3 or buffing the reload speed is the best solution.