Do_physics performance issues

[Game_Starter]

Hi all,
This seems to have been spoken of here:

Bullet's "do_physics" in Python and C++

This issue on GitHub notes that, when used from Python, Bullet’s “do_physics” method can result in performance loss. Is there then a way to have it be run automatically in on the C++ side? Or would the only way be to develop on the C++ side, and thence run it oneself?

But it still seems to be an issue for me, whenever I use the do_physics method from the python side, there’s a considerable drop in frame rate. I’m using the Panda3D version 1.10.15
Here is what I do on the C++ side:

PUBLISHED:   
void start_physics() {
bullet_task = new GenericAsyncTask("cpp_bullet_task", &do_world_physics, physics_world);
    AsyncTaskManager::get_global_ptr()->add(bullet_task );
   }
private:
      static AsyncTask::DoneStatus do_world_physics(GenericAsyncTask *task, void *data) {
        BulletWorld *bw= (BulletWorld *)data;
        ClockObject *co = ClockObject::get_global_clock();
        bw->do_physics(co->get_dt(), 10, 1.0 / 180.0);
        return AsyncTask::DS_cont;
      }
private:
    PT(GenericAsyncTask) bullet_task ;

Or just:

    BLOCKING void do_phys_stuff()
    {
        ClockObject *co = ClockObject::get_global_clock();
        physics_world->do_physics(co->get_dt(), 10, 1.0 / 180.0);
    }

And on the python side:

cpp_object.start_physics()

Or:

taskMgr.add(self.updatePhysiWrldTst, 'updatePhysiWrldTstNom')
...
def updatePhysiWrldTst(self,task):
    cpp_object.do_phys_stuff()
    return task.cont

I could just simulate things from the python side, but if the c++ side is considerably faster, then it would be great if this seemingly persistent issue is resolved. Am I doing something wrong?

Thanks in advance.