As @Abo7meed said , it shouldnt affect the speed.
By default , for everyone , interleaving is on. You can easily call and ask them to turn it off. But again , if your line is not stable , you'll face frequent disconnections and packet losses , but you can turn on interleaving again it is not a problem
By default , for everyone , interleaving is on. You can easily call and ask them to turn it off. But again , if your line is not stable , you'll face frequent disconnections and packet losses , but you can turn on interleaving again it is not a problem