About the speed you getting. It depends on 2 things. First is from your port's speed configuration. This is how the DSLAM allow a single port out with a range of speed. like from the lowest to highest. Second thing, where your username's speed capping. The speed was actually depends on what kind of package you subscribed. Example, 512Kbps,1Mbps,2Mbps and 4Mbps.

Okay, here's the thing. If you manage to request to the Network Dept. for them to help you configure your port's speed into higher than what you subscribed. Eventually you will get speed ahead where fully 100% or 110% faster than your original speed.

Your port configured under 4Mbps. For the physical or real time output, the best you will get is around 80-90% of the port's speed. That's why you get around 3.2-3.5Mbps. But if your port's speed was higher than 4Mbps, like 5Mbps. The output speed, will be around 4-4.5Mbps. But there is a drawback, once your port configured to a higher speed. It will be reduce your line signal too (SNR and Line Att.) It may contribute to unstable connection.
To do that, you need to make sure you have a very strong signal under 4Mbps.

Hmm so fakap both my Streamyx connections in my house is down

1 Mbps can get ip but cannot browsing

4 Mbps no dial tone at all DSL totally blinking

Why not if u don't like streaming just download the youtube to ur pc using internet download manager? It would be an awesome speed