how can i make this crosshair movement smoothly

 '   public void renderCrosshair(RenderGameOverlayEvent event) {      if(mc.gameSettings.guiScale == 2) {       Minecraft minecraft = Minecraft.getMinecraft();       if(event.type == ElementType.CROSSHAIRS && isGunInHand(minecraft.thePlayer)) {          event.setCanceled(true);          Icon crosshairIcon = ClientProxy.iconRegistry.crosshairIcon;          double scale = 6.0F + getScaleByMotion(minecraft.thePlayer);          if(FlansModClient.currentScope == null)          scale = 45.0F + getScaleByMotion(minecraft.thePlayer);                    GL11.glPushAttrib(16384);          GL11.glPushMatrix();          GL11.glEnable(3042);          OpenGlHelper.glBlendFunc(775, 769, 1, 0);          GL11.glEnable(3008);          GL11.glColor3d(1.0D, 1.0D, 1.0D);          GL11.glTranslated((double)(event.resolution.getScaledWidth() / 2), (double)(event.resolution.getScaledHeight() / 2), 0.0D);          GL11.glPushMatrix();          ClientProxy.iconRegistry.bindSheet();          GL11.glRotated(90.0D, 0.0D, 0.0D, 2.0D);          ClientProxy.iconRegistry.renderIcon(crosshairIcon, -1.9D, (double)(-scale) + 0.1D);          GL11.glRotated(90.0D, 0.0D, 0.0D, 1.0D);          ClientProxy.iconRegistry.renderIcon(crosshairIcon, -3.0D, (double)(-scale) - 0.1D);          GL11.glRotated(90.0D, 0.0D, 0.0D, 1.0D);          ClientProxy.iconRegistry.renderIcon(crosshairIcon, -3.0D, (double)(-scale) + 0.9D);  '