diff --git a/src/gbmanager.cpp b/src/gbmanager.cpp
index 97da8ea..bda40a6 100644
--- a/src/gbmanager.cpp
+++ b/src/gbmanager.cpp
@@ -31,10 +31,11 @@ absolute_time_t lastPressed = get_absolute_time();
 using std::string;
 
 void buttonPressedCallback(uint gpio, uint32_t events) {
-    if (absolute_time_diff_us(lastPressed, get_absolute_time()) < 750000) {
+    absolute_time_t now = get_absolute_time();
+    if (absolute_time_diff_us(lastPressed, now) < 750000) {
         return;
     } else {
-        lastPressed = get_absolute_time();
+        lastPressed = now;
     }
 
     switch (gpio) {
@@ -88,7 +89,6 @@ int main() {
     sleep_ms(3000);
 
     while (true) {
-        absolute_time_t start = get_absolute_time();
         oneWire.convert_temperature(address, true, false);
         temp_act = oneWire.temperature(address);
 
@@ -99,6 +99,7 @@ int main() {
         } else if (!isSystemOn) {
             isHeating = false;
         }
+
         isHeating ? heatInfo = ">H<" : heatInfo = "   ";
         isSystemOn ? systemInfo = "ON " : systemInfo = "OFF";
 
@@ -113,13 +114,5 @@ int main() {
 
         myLCD.setCursor(0, 0);
         myLCD.sendString(lcdText.str());
-
-        absolute_time_t stop = get_absolute_time();
-
-        int64_t duration_ms = absolute_time_diff_us(start, stop) / 1000;
-        int64_t timeToSleep = 1000 - duration_ms;
-
-        if (timeToSleep > 0)
-            sleep_ms(timeToSleep);
     }
 }
\ No newline at end of file