PSx emulator background

Im not good with computers nor with english, so please bear with me...please.Im currently playing Chrono Cross with an epsxe 1.52 emulator and the first thing i noticed was that the background seemed rather "blurry".
no matter how hard i try, it all yielded the same result. I tried it with the game " Breath of Fire IV", but it produced the same result.Is this a question of PLUG-INS? or HARDWARE?Please help me.

what plugins are you using, and what graphics hardware do you have?

*sigh... embarrassing to say but i didn't memorized my DESKTOP's SPECS...and it crashed just a few days ago due to sudden loss of electricity... :'(
let me get back when its fixed....how does power loss CRASH a PC anyways.... :-X

probably surged when it came back on and blew the power supply.