I do experience the Internet is freezing and not responding when I open programs and websites.

I did a speed test at saix.net with the following results: -

The latency was always 25ms, but is now around 30ms to 34ms.
Afrihost support reported back with the following reply: -
"The reason why you are getting the speeds that you are getting is due to Telkom's automatic system re-syncing the line at 1.5mbps and the distance from the exchange has contributed to the 200kbs drop to 1.3mbps.
Telkom are the only ones that can re-sync your line at 2mbps again we can no longer do that."
Can a Telkom Tech or somebody else please assist?

I did a speed test at saix.net with the following results: -

The latency was always 25ms, but is now around 30ms to 34ms.
Afrihost support reported back with the following reply: -
"The reason why you are getting the speeds that you are getting is due to Telkom's automatic system re-syncing the line at 1.5mbps and the distance from the exchange has contributed to the 200kbs drop to 1.3mbps.
Telkom are the only ones that can re-sync your line at 2mbps again we can no longer do that."
Can a Telkom Tech or somebody else please assist?