Use mongoose-paginate-v2 query slow problem

Scenes

mongoose-paginate-v2 plug-ins on the page is a mongoose, I have used many times, but recently created project encountered problems.

Do not use the old code pagination plug-in query, and then use their own middleware paging
old codes, 16ms

 @Get('')
  public async index(@Query() query, @Pager() pager: any, @Req() req: Request, @Res() res: Response) {
    const map: any = {};
    if (query.group && query.group !== '') {
      map.group = query.group;
    }
    if (query.username && query.username !== '') {
      map.username = { $regex: query.username };
    }
    const count = await this.model.countDocuments(map);
    const page = pager.parse(count);
    console.log(page);

    const list = await this.model.find(map).sort({ updateAt: -1 })
      .limit(page.limit)
      .skip(page.skip)
      .select('_id group username device.deviceType deviceType createAt updateAt status enable creator proxy')
      .populate('group');

    return res.status(HttpStatus.OK).json({
      message: 'success',
      data: {
        list: [],
      },
    });
  }

The new code using pagination plug-in takes about 1.5s very slow
use paginate: 1532ms

 public async slow(@Query() query, @Pager() pager: any, @Req() req: Request, @Res() res: Response) {
    const map: any = {};
    if (query.group && query.group !== '') {
      map.group = query.group;
    }
    if (query.username && query.username !== '') {
      map.username = { $regex: query.username };
    }
    const count = await this.model.count(map);
    const page = pager.parser(count);
    console.log(page);
    const list = await this.model.paginate(map, {
      limit: pager.limit,
      offset: pager.skip,
      select: '_id group username device.deviceType deviceType createAt updateAt status enable creator proxy',
      populate: ['group'],
      sort: { updateAt: -1 },
    });

    return res.status(HttpStatus.OK).json({
      message: 'success',
      data: list,
    });
  }

Mentioned issue

I am also quite busy, so I did not see the code directly mention the issue, currently receive a reply that need to be updated to the new version v1.3.3back to normal after the update

Address Issue

Blog: https://github.com/zhaojunlike