CorelDRAW X3 :: A Long Lag When Switching Between English And Chinese Characters

i have a long lag whenever I switch from typing english text to chinese characters, and vice versa.

For example, I have two text object: One with english text, another one with a chinese text. Let's say I am currently selecting an english text, can move, can edit.

But when I select chinese text, there's a long lag, like 10-20 seconds of lag before I can move chinese text. By editing the chinese text, there's another long set of lag. 

Then, it is smooth to move the chinese text. But, when I select the english text again, there's another set of lag. It's like the program trying to search for something on the background.

This has nothing to do with font types, as they switch pretty easily, but there is a lag when switching between an english font type and a chinese font type.