get_bus_connected_components very slow

[AadilLatif]

ncalls tottime percall cumtime percall filename:lineno(function)
33114519 21.891 0.000 40.132 0.000 distribution_system.py:30()
33114519 18.241 0.000 18.241 0.000 distribution_system.py:30()
7122601/1974073 2.700 0.000 3.961 0.000 encoder.py:334(_iterencode_dict)
5962141/5951774 1.598 0.000 5.905 0.000 {built-in method builtins.isinstance}
2455621/1974045 0.736 0.000 3.417 0.000 encoder.py:278(_iterencode_list)
1982239 2.509 0.000 2.509 0.000 {method 'write' of '_io.TextIOWrapper' objects}
1974073 0.554 0.000 4.515 0.000 encoder.py:414(_iterencode)
1543616 0.478 0.000 0.478 0.000 coreviews.py:280()
1318175/1318153 0.557 0.000 3.895 0.000 {built-in method builtins.hasattr}
1205976/1163372 0.188 0.000 0.790 0.000 {built-in method builtins.len}
1196258 0.317 0.000 0.317 0.000 {method 'subclasses' of 'type' objects}
1167168 2.216 0.000 2.216 0.000 system.py:541(get_components)
1167162 914.811 0.001 3040.265 0.003 distribution_system.py:15(get_bus_connected_components)
1162643 0.419 0.000 0.420 0.000 {method 'extend' of 'list' objects}

[AadilLatif]

@KapilDuwadi can this be improved somehow?