Are checkboxes slower to load than switches?

I have an Activity with 34 Switch, and loading the activity is fine.

However, when I try to replace the Switch with CheckBox the activity takes a full second to load.

Is this a general problem with CheckBox or is my code just not appropriate?

My code for the activity, simplified (shows only 1 CheckBox)

public class Myactivity extends AppCompatActivity {
CheckBox MyCheckbox1;

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_myactivity);

        MyCheckbox1 = findViewById(R.id.mycheck1);
        Mycheckbox1.OnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            onCheckedChanged(CompoundButton view, boolean isChecked) {
                if(((CompoundButton) view).isChecked()){
                    //do something
                }else{
                    //do something else
                }
            }
        }
    }
}

My XML code for the Checkboxes:

<CheckBox
                android:id="@+id/mycheck1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/Option1"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintTop_toTopOf="parent" />