Flutter modal bottom sheet performance issue

When dragging modal bottom sheets, the flutter application starts lagging if a lot of widgets live inside the sheet. This only occurs on the modal bottom sheet (showModalBottomSheet) and not on the normal one (showBottomSheet). Below I attached a screenshot of the performance analysis, which shows, that all widgets inside the sheet are beeing constantly rebuilt while the user is dragging.

I wrote a little demo to compare the performance of the two types of sheets. Is there a way to prevent the rebuilding while dragging?

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

/// This Widget is the main application widget.
class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: "demo",
      home: Scaffold(
        body: MyButtons(),
      ),
    );
  }
}

class MyButtons extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: <Widget>[
          RaisedButton(
            onPressed: () {
              showModalBottomSheet<void>(
                context: context,
                builder: (context) => BottomSheet(),
              );
            },
            child: Text("show modal (laggy)"),
          ),
          RaisedButton(
            onPressed: () {
              showBottomSheet<void>(
                context: context,
                builder: (context) => BottomSheet(),
              );
            },
            child: Text("show normal (not laggy)"),
          ),
        ],
      ),
    );
  }
}

class BottomSheet extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Wrap(
      spacing: 8.0,
      alignment: WrapAlignment.center,
      children: List<Widget>.generate(
        100,
        (int index) {
          return InputChip(
            label: Text("test"),
          );
        },
      ),
    );
  }
}