Final Fantasy Tactics: The War of the Lions

[lexaduna]

Hello, i have some problem with this game, can anyone please help me find solution?

I played with settings a bit and managed make game look preety and run on ok speed, but there is an annoying problem. Textures seems to "load-up" every time action happens, text-box appears. They looks pixelated and next moment, 1-2 seconds later - smooth. I attached some screenshots to illustrate it. How can i make them smooth all the time and not pixelated at the start? Thanks in advance, any suggestions are much appreciated!