Big tif image freezes Aurigma uploader (java)

<script language="JavaScript" type="text/javascript">
<!--
	// set up aurigma system
	var iu = new ImageUploaderWriter("ImageUploader", "100%", 400);
	iu.activeXControlEnabled = true;
	iu.javaAppletEnabled = true;
	iu.activeXControlCodeBase = "/tools/ImageUploader4.cab";
	iu.javaAppletCodeBase="/tools";

	// iu.addParam("LicenseKey", "XXXX-XXXX-XXXX-XXXX");
	iu.addParam("AllowAutoRotate", "true");
	iu.addParam("FileMask", "*.jpg;*.jpeg;*.bmp;*.png;*.tif;*.tiff;*.gif;*.bmp;*.avi;*.mov;*.mpg;*.mpeg;*.wmv;*.qt;*.3gp;*.3g2");
	iu.addParam("MaxFileSize", 104857600); // 100 MB

	iu.addParam("Action", "/gallery/toto/upload");
	iu.addParam("Charset", "UTF-8");
	iu.addParam("AutoRecoverMaxTriesCount", 3);
	iu.addParam("MaxConnectionCount", 3);
	iu.addParam("FilesPerOnePackageCount", 2);

	iu.addParam("UploadSourceFile", "false");
	iu.addParam("UploadThumbnail1FitMode", "Fit");
	iu.addParam("UploadThumbnail1Width", "1024");
	iu.addParam("UploadThumbnail1Height", "768");
	iu.addParam("UploadThumbnail1ResizeQuality", "High");
	iu.addParam("UploadThumbnail1JpegQuality", "90");

	iu.addParam("EditDescriptionText", "Edit title...");

	iu.writeHtml();
//-->
</script>