What to do when the infra is provided by TM, unless the companies willing to spend billions of ringgits to lay another backbone, then can easily see 1gbps or upcoming 10gbps faster.

Actually can be done, but to dig the roads in Malaysia, have to go through tons of depts to seek approval. Also definitely the costs will be super high. If fiber can go nation wide, first 5 years will see the price hovering above 200~300rm/mth, after that then it will come down to 100+rm.