Better way to fetch data for parents

[byme8]

Currently, we are using BatchDataLoader to fetch data for child nodes:

public async Task<PriceChanged[]> GetPriceChangeHistory(
    IResolverContext context,
    [Parent] Product parent,
    [Service] PriceChangeService service)
{
    return await context
        .BatchDataLoader<int, PriceChanged[]>(async (ids, _) =>
            await service.GetPriceChangeHistory(ids))
        .LoadAsync(parent.Id);
}

This approach works as expected. However, when we need to retrieve a large number of rows (500+) for reports, we observed that scheduling the BatchDataLoader for each row takes some time. Although it's not a significant delay, it is noticeable in our telemetry data.

Is there a better way to handle such scenarios? I'm considering a method to fetch all parents at once and schedule everything in one go:

public async Task<IReadOnlyDictinary<int, PriceChanged[]>> GetPriceChangeHistory(
    IResolverContext context,
    [Parent] Product[] parents,
    [Service] PriceChangeService service)
{
    var ids = parents.Select(o => o.Id).ToArray();
    return await service.GetPriceChangeHistory(ids);
}