I have more than 200K MongoIds in the idsList list.And when executing the below code, it takes more than 1 minute to execute the mongo aggregate function.Please suggest solution to improve the performance or other way to get the result.

var bsonDocument= new BsonDocument
                 {
                     { "_id", BsonNull.Value },
                     { "min", new BsonDocument("$min", "$field") }
                 };
                       

     var data= await Collection.Aggregate()
                               .Match(Builders<Entity>.Filter.In(x => x.Id, idsList))
                               .Group(bsonDocument)
                               .FirstOrDefaultAsync(cancellationToken);