Python PyQt5 İşlem Anında Donma Sorunu

import speech_recognition as sr
from komut import komutlar
from PyQt5 import QtWidgets, uic
import sys

r = sr.Recognizer()
class Ui(QtWidgets.QMainWindow):
    def __init__(self):
        super(Ui, self).__init__()
        uic.loadUi('tasarim.ui', self)
        self.micButton = self.findChild(QtWidgets.QPushButton, 'micButton')
        self.micButton.clicked.connect(self.micButtonPressed)
        self.show()
    def micButtonPressed(self):
        print("micButton Pressed")
        self.micButton.setStyleSheet("border-image: url('C:/Users/KutaN/Desktop/Asistan/image/mic_2.png');")
        with sr.Microphone() as source:
            audio = r.listen(source, phrase_time_limit=5)

        data = ""
        try:
            data = r.recognize_google(audio, language='tr-tr')
            komut = komutlar(data)
            komut.islemBul()

        except sr.UnknownValueError:
            print("Ne dediğini anlayamadım.")

        except sr.RequestError:
            print("İnternet bağlanıtısı kurulamadı.")
        self.micButton.setStyleSheet("border-image: url('C:/Users/KutaN/Desktop/Asistan/image/mic_1.png');")

app = QtWidgets.QApplication(sys.argv)
window = Ui()
sys.exit(app.exec_())