Dramatic FPS drop when moving the terminal window

[BenDol]

Drops from 70fps down to 9fps when moving the terminal window.

[edubart]

The terminal window currently have low performance once there is too many text in the terminal. It's because it adds an invisible TextEdit over the labels just to make the whole terminal text selectable and at the moment TextEdit does not work well for large texts.

[edubart]

If we remove the TextEdit the terminal will perform much better again, however selecting and copying won't be possible.

[BenDol]

I see, well its not such a bit deal since it doesn't affect general game-play. Just something to note as an enhancement later :)