Input Latency eeprom

#include <EEPROM.h>
#include <AnalogMultiButton.h>
#include <Mouse.h>
#include <SevSeg.h>
SevSeg sevseg; //Instantiate a seven segment object

const int BUTTONS_PIN = A1;
const int BUTTONS_TOTAL = 4;
const int BUTTONS_VALUES[BUTTONS_TOTAL] = {0, 318, 486, 589};
const int BUTTON_MODE = 0;
const int BUTTON_MINUS = 1;
const int BUTTON_PLUS = 2;
const int BUTTON_START = 3;


unsigned long previousMicros = 0;
unsigned long previousMicros2 = 0;
const int ledPin = 13;

int analogPin = 0;
int val = 0;

unsigned long lag = 0;
unsigned long lag2;
unsigned long wait;
int state = 0;
unsigned long var2 = 0;
int refresh = 1;
int s;
int samples;
int setSamples;
int t;
int lcd = 1;
int location = 0;
int8_t distance;
int mode = 1;
int i = 101;
int PC = 0;
int addressDistance = 0;
int addressInterval = 1;
int addressSamples = 2;
float skaicius;
float skaicius2;

AnalogMultiButton buttons(BUTTONS_PIN, BUTTONS_TOTAL, BUTTONS_VALUES);

void setup() {
  Mouse.begin();
  byte numDigits = 4;
  byte digitPins[] = {1, 4, 5, 7};
  byte segmentPins[] = {2, 6, 9, 11, 12, 3, 8, 10};
  bool resistorsOnSegments = true; // 'false' means resistors are on digit pins
  byte hardwareConfig = COMMON_CATHODE; // See README.md for options
  sevseg.begin(hardwareConfig, numDigits, digitPins, segmentPins, resistorsOnSegments);

  pinMode(ledPin, OUTPUT);
  setSamples = EEPROM.read(addressSamples);
  distance = EEPROM.read(addressDistance);
  t = EEPROM.read(addressInterval);

  Serial.begin(9600);
}
void loop() {
  unsigned long currentMicros = micros();
  val = analogRead(analogPin);
  buttons.update();

  if (buttons.isPressedAfter(BUTTON_MODE, 3000)) {
    setSamples = 50;
    EEPROM.write(addressSamples, setSamples);
    distance = 50;
    EEPROM.write(addressDistance, distance);
    t = 1;
    EEPROM.write(addressInterval, t);
  }

  switch (mode)
  {
    case 1:
      {
        if (lcd == 1) {
          sevseg.setNumber(1);
          samples = setSamples;
        }
        if (state == 1 && s <= samples) {
          wait = 250000 * t;
          sevseg.setNumber(s);
          state = 2;
          previousMicros = currentMicros;
        }
        if (currentMicros - previousMicros >= wait && state == 2) {
          Mouse.move(distance, 0, 0);
          digitalWrite(ledPin, HIGH);
          previousMicros = currentMicros;
          state = 3;
        }
        if (val <= 980 && state == 3) {
          lag = currentMicros - previousMicros;
          digitalWrite(ledPin, LOW);
          Mouse.move(-distance, 0, 0);
          previousMicros = currentMicros;
          s = s + 1;
          PC = 1;
          state = 4;

        }
        if (state == 4) {
          if (lag >= 1000000) {
            lag2 = lag / 1000;
            sevseg.setNumber(lag2);

          } else {
            lag2 = lag / 100;
            sevseg.setNumber(lag2, 1);

          }
          if (PC == 1) {
            skaicius2 = lag;
            skaicius = skaicius2 / 1000;
            Serial.println(skaicius);
            PC = 0;
          }
          if (currentMicros - previousMicros >= wait && PC == 0) {
            state = 1;
          }
        }
        if (buttons.onPress(BUTTON_START))
        {
          state = 1;
          s = 1;
          lcd = 10;
        }
        else if (buttons.onPress(BUTTON_MODE))
        {
          mode = 2; // Switch to mode 2
          lcd = mode;
          state = 5;
        }
        break;
      }
    case 2:
      {
        if (lcd == 2) {
          sevseg.setNumber(2);
        }
        if (refresh == 1) {
          previousMicros = currentMicros;
          refresh = 0;
        }
        if (lcd == 21 && currentMicros - previousMicros >= 200000) {
          sevseg.setNumber(val);
          refresh = 1;
        }
        if (val <= 980) {
          digitalWrite(ledPin, HIGH);
        } else {
          digitalWrite(ledPin, LOW);
        }
        if (buttons.onPress(BUTTON_START))
        {
          if (location == 0) {
            Mouse.move(distance, 0, 0);
            location = 1;
          } else {
            Mouse.move(-distance, 0, 0);
            location = 0;
          }
          lcd = 21;
        }
        else if (buttons.onPress(BUTTON_MODE))
        {
          mode = 3; // Switch to mode 3
          lcd = mode;
          if (location == 1) {
            Mouse.move(-distance, 0, 0);
            location = 0;
          }
        }
        break;
      }
    case 3:
      {
        if (lcd == 3) {
          sevseg.setNumber(3);
        }
        if (refresh == 1) {
          previousMicros = currentMicros;
          refresh = 0;
        }
        if (lcd == 31 && currentMicros - previousMicros >= 200000) {
          sevseg.setNumber(val);
          refresh = 1;
        }
        if (currentMicros - previousMicros2 >= 1000000 && lcd == 30) {
          lcd = 31;
        }
        if (val <= 980) {
          digitalWrite(ledPin, HIGH);
        } else {
          digitalWrite(ledPin, LOW);
        }
        if (buttons.onPress(BUTTON_PLUS))
        {
          if (location == 0) {
            Mouse.move(distance, 0, 0);
            location = 3;
          }
          else if (location == 3 && distance <= 120) {
            Mouse.move(5, 0, 0);
            distance = distance + 5;
            EEPROM.update(addressDistance, distance);
          }
          sevseg.setNumber(distance);
          lcd = 30;
          previousMicros2 = currentMicros;
        }
        else if (buttons.onPress(BUTTON_MINUS))
        {
          if (location == 0) {
            Mouse.move(distance, 0, 0);
            location = 3;
          }
          else if (location == 3 && distance >= -120) {
            Mouse.move(-5, 0, 0);
            distance = distance - 5;
            EEPROM.update(addressDistance, distance);
          }
          sevseg.setNumber(distance);
          lcd = 30;
          previousMicros2 = currentMicros;
        }
        else if (buttons.onPress(BUTTON_START))
        {
          if (location == 0) {
            Mouse.move(distance, 0, 0);
            location = 3;
          } else {
            Mouse.move(-distance, 0, 0);
            location = 0;
          }
          lcd = 31;
        }
        else if (buttons.onPress(BUTTON_MODE))
        {
          mode = 4; // Switch to mode 4
          lcd = mode;
          if (location == 3) {
            Mouse.move(-distance, 0, 0);
            location = 0;
          }
        }
        break;
      }
    case 4:
      {
        if (lcd == 4) {
          sevseg.setNumber(4);
        }
        if (buttons.onPress(BUTTON_PLUS))
        {
          if (lcd == 4) {
            sevseg.setNumber(t * 5, 1);
            lcd = 40;
          } else if (t <= 19) {
            t = t + 1;
            EEPROM.update(addressInterval, t);
            sevseg.setNumber(t * 5, 1);
          }
        }
        else if (buttons.onPress(BUTTON_MINUS))
        {
          if (lcd == 4) {
            sevseg.setNumber(t * 5, 1);
            lcd = 40;
          } else if (t >= 2) {
            t = t - 1;
            EEPROM.update(addressInterval, t);
            sevseg.setNumber(t * 5, 1);
          }
        }
        else if (buttons.onPress(BUTTON_MODE))
        {
          mode = 5; // Switch to mode 5
          lcd = mode;
        }
        break;
      }
    case 5:
      {
        if (lcd == 5) {
          sevseg.setNumber(5);
        }
        if (buttons.onPress(BUTTON_PLUS))
        {
          if (lcd == 5) {
            sevseg.setNumber(setSamples);
            lcd = 50;
          } else if (setSamples <= 240) {
            setSamples = setSamples + 10;
            EEPROM.update(addressSamples, setSamples);
            sevseg.setNumber(setSamples);
          }
        }
        else if (buttons.onPress(BUTTON_MINUS))
        {
          if (lcd == 5) {
            sevseg.setNumber(setSamples);
            lcd = 50;
          } else if (setSamples >= 10) {
            setSamples = setSamples - 10;
            EEPROM.update(addressSamples, setSamples);
            sevseg.setNumber(setSamples);
          }
        }
        else if (buttons.onPress(BUTTON_MODE))
        {
          mode = 1; // Switch to mode 1
          lcd = mode;
        }
        break;
      }
  }
  sevseg.refreshDisplay();
}