I wrote some feedback to Pos Malaysia few days back.
They did mentioned that they will revise the price. This is not a confirmed thingy though.
It's bad to small seller and will back fire Pos Malaysia in the long run.

It's absolutely crazy as you need to pay around USD21.53 to ship to US using slow mail when you can pay USD27 using FedEx for express service!
The new pricing needs to be reduced and also segmented into small weight range like 0-250 gm, 251-500 gm... rather than the below 1 kg, above 1 kg...

For few minutes on their website, saw they added rates for 250 gm & 500 gm range (but no 750 gm, straight to 1 kg) at RM21 & RM40 respectively for packet to USA (Zone 4). But, it disappear shortly after that. Price were without register service (RM4.60).