[SOLVED] Fast and slow KeyAdapter(KeyInputHandler)

Hello everybody! I wanna make little 2D quest-game, i added a Hero and KeyAdapter... But!
On my Linux-notebook Hero walking not slow and not fast(like in all games).
On my Windows-PC Hero walking very fast. 1 keyPress on PC = 10 keyPress on notebook. How can i fix it? Thanks for help.

Code of KeyInputHandler:

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package code;

import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;

public class KeyInputHandler extends KeyAdapter {

    private byte direction = 0;
    private boolean jumped = false;
    /*
     * 0 - no
     * 1 - right
     * 2 - left
     */

    @Override
    public void keyPressed(KeyEvent e) {
        if (e.getKeyCode() == KeyEvent.VK_LEFT) {
            direction = 2;
        }
        if (e.getKeyCode() == KeyEvent.VK_RIGHT) {
            direction = 1;
        }
        if (e.getKeyCode() == KeyEvent.VK_UP) {
            jumped = true;
        }
    }

    @Override
    public void keyReleased(KeyEvent e) {
        if (e.getKeyCode() == KeyEvent.VK_LEFT) {
            direction = 0;
        }
        if (e.getKeyCode() == KeyEvent.VK_RIGHT) {
            direction = 0;
        }
        if (e.getKeyCode() == KeyEvent.VK_UP) {
            jumped = false;
        }
    }
    
    public byte getDirection(){
        return direction;
    }
    
    public boolean getJumped(){
        return jumped;
    }
}

Part of code in Main class:

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@Override
    public void run() {
        long lastTime = System.currentTimeMillis();
        long delta;
        try {
            init();
        } catch (IOException ex) {
            Logger.getLogger(Game.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        while (running) {
            delta = System.currentTimeMillis() - lastTime;
            lastTime = System.currentTimeMillis();
            update(delta);
            render();
        }
    }
   
    private void update(long delta) {
        if (KIH.getDirection() == 2) {
            level.walkBackward();
        }
        if (KIH.getDirection() == 1) {
            level.walkForward();
        }
        if (KIH.getJumped()){
            level.heroAction();
        }
    }

@Override
public void run() {
long beforeTime, timeDiff, sleep;

beforeTime = System.currentTimeMillis();

while(true) {
update();
repaint();

timeDiff = System.currentTimeMillis() - beforeTime;
sleep = FRAME_DELAY - timeDiff;
if (sleep < 0)
sleep = 2;
try {
Thread.sleep(sleep);
} catch (InterruptedException e) {

}

beforeTime = System.currentTimeMillis();
}
}