Difference between the scraped amount in browser vs on Python

from apify import Actor
from apify_client import ApifyClient


async def main():
    async with Actor:
        # Get the value of the actor input
        actor_input = await Actor.get_input() or {}

        apify_client = ApifyClient('apify_api_************************')

        dataset = apify_client.dataset('Sh*************zz')

        dataset_items = dataset.list_items().items

        i = 1
        for item in dataset_items:
            print(i)
            i += 1