Fix ETC quality setting

modules/etc/image_compress_etc.cpp

@@ -166,12 +166,12 @@ static void _compress_etc(Image *p_img, float p_lossy_quality, bool force_etc1_f
 	int encoding_time = 0;
 	float effort = 0.0; //default, reasonable time
 
-	if (p_lossy_quality > 0.75) {
-		effort = 0.4;
+	if (p_lossy_quality > 0.95) {
+		effort = 80;
 	} else if (p_lossy_quality > 0.85) {
-		effort = 0.6;
-	} else if (p_lossy_quality > 0.95) {
-		effort = 0.8;
+		effort = 60;
+	} else if (p_lossy_quality > 0.75) {
+		effort = 40;
 	}
 
 	Etc::ErrorMetric error_metric = Etc::ErrorMetric::RGBX; // NOTE: we can experiment with other error metrics