Slow Internet

Since the beginning of the year 2019, my ADSL Internet is inconsistent and slow, even though I have a 10Meg line. I am tired of calling in to support so that the connection can be reset and flushed. From the beginning of July it is worce. The speed is very low and I can't view any movie without an interruption. It will not be any better with an other service provider because the ADSL is supp**** by Telkom.