diff --git a/src/gui/plotter.py b/src/gui/plotter.py
index 5c0a894..aafa981 100644
--- a/src/gui/plotter.py
+++ b/src/gui/plotter.py
@@ -1,5 +1,7 @@
 import pandas as pd
-from PyQt5.QtWidgets import QWidget, QVBoxLayout, QLabel, QGraphicsRectItem 
+from PyQt5.QtWidgets import QWidget, QVBoxLayout, QLabel, QGraphicsRectItem
+from PyQt5.QtGui import QFont
+
 import pyqtgraph as pg
 import numpy as np
 from numpy import floating
@@ -160,9 +162,13 @@ class PlotWidget(BasePlotWidget):
             if settings["performance"]:
                 tesla_TWC = round((1 - TWC_time/tesla_time)*100,2)
                 tesla_ideal = round((1 - ideal_time/tesla_time)*100,2)
-                TWC_ideal = round((TWC_time/ideal_time - 1)*100,2)
-                performance_label = QLabel(f"Сокращение длительности: фактическое = {tesla_TWC} %, идеальное = {tesla_ideal} %, разница идеала и факта = {TWC_ideal}%")
+                TWC_ideal = round((ideal_time/TWC_time)*100,2)
+
+                performance_label = QLabel(f"Сокращение длительности: фактическое = {tesla_TWC} %, идеальное = {tesla_ideal} %; КДИП = {TWC_ideal}%")
                 layout.addWidget(performance_label)
+
+                performance_label.update()
+
             layout.addWidget(plot_widget)
 
         widget.setLayout(layout)