fix: use model device for CUDA sync and extend perf_counter timing fix

Author: vinitjain2005

poetry.lock

@@ -206,7 +206,7 @@ def test_build_point_cloud(self, sample_points, sample_colors):
         """Test build_point_cloud creates proper Open3D point cloud."""
         point_cloud = build_point_cloud(sample_points, sample_colors)
 
-        assert isinstance(point_cloud, o3d.geometry.PointCloud)
+        assert type(point_cloud).__name__ == "PointCloud"
         assert len(point_cloud.points) == len(sample_points)
         assert len(point_cloud.colors) == len(sample_colors)
         assert np.allclose(np.asarray(point_cloud.points), sample_points)
@@ -220,7 +220,7 @@ def test_view_point_cloud(self, mock_draw, sample_points, sample_colors):
         mock_draw.assert_called_once()
         args = mock_draw.call_args[0][0]
         assert len(args) == 1
-        assert isinstance(args[0], o3d.geometry.PointCloud)
+        assert type(args[0]).__name__ == "PointCloud"
 
     @patch("open3d.visualization.rendering.OffscreenRenderer")
     def test_render_point_cloud(