diff --git a/src/main/java/com/volmit/iris/core/loader/IrisData.java b/src/main/java/com/volmit/iris/core/loader/IrisData.java
index 374f6adf2..415289444 100644
--- a/src/main/java/com/volmit/iris/core/loader/IrisData.java
+++ b/src/main/java/com/volmit/iris/core/loader/IrisData.java
@@ -366,7 +366,7 @@ public class IrisData implements ExclusionStrategy, TypeAdapterFactory {
         if(f.getPath().startsWith(getDataFolder().getPath())) {
             String[] full = f.getPath().split("\\Q" + File.separator + "\\E");
             String[] df = getDataFolder().getPath().split("\\Q" + File.separator + "\\E");
-            String g = "";
+            StringBuilder g = new StringBuilder();
             boolean m = true;
             for(int i = 0; i < full.length; i++) {
                 if(i >= df.length) {
@@ -375,7 +375,7 @@ public class IrisData implements ExclusionStrategy, TypeAdapterFactory {
                         continue;
                     }
 
-                    g += "/" + full[i];
+                    g.append("/").append(full[i]);
                 }
             }
 
diff --git a/src/main/java/com/volmit/iris/util/interpolation/IrisInterpolation.java b/src/main/java/com/volmit/iris/util/interpolation/IrisInterpolation.java
index 9b0b08b1b..bd2659674 100644
--- a/src/main/java/com/volmit/iris/util/interpolation/IrisInterpolation.java
+++ b/src/main/java/com/volmit/iris/util/interpolation/IrisInterpolation.java
@@ -337,10 +337,10 @@ public class IrisInterpolation {
         StringBuilder sb = new StringBuilder();
 
         if(array) {
-            fb.append("private static final double[] F" + (int) checks + "A = {");
+            fb.append("private static final double[] F").append((int) checks).append("A = {");
         }
 
-        sb.append("private static double sc" + (int) checks + "(int x, int z, double r, NoiseProvider n) {\n    return (");
+        sb.append("private static double sc").append((int) checks).append("(int x, int z, double r, NoiseProvider n) {\n    return (");
         for(int i = 0; i < 360; i += m) {
             double sin = Math.sin(Math.toRadians(i));
             double cos = Math.cos(Math.toRadians(i));
@@ -350,13 +350,13 @@ public class IrisInterpolation {
             String ss = array ? "F" + (int) checks + "A[" + (igx++) + "]" : "F" + (int) checks + "S" + ig;
 
             if(array) {
-                fb.append((ig > 0 ? (ig % 6 == 0 ? ",\n" : ",") : "") + cof + "," + sif);
+                fb.append(ig > 0 ? (ig % 6 == 0 ? ",\n" : ",") : "").append(cof).append(",").append(sif);
             } else {
-                fb.append("private static final double " + cc + " = " + cof + ";\n");
-                fb.append("private static final double " + ss + " = " + sif + ";\n");
+                fb.append("private static final double ").append(cc).append(" = ").append(cof).append(";\n");
+                fb.append("private static final double ").append(ss).append(" = ").append(sif).append(";\n");
             }
 
-            sb.append((ig > 0 ? "\n    +" : "") + "n.noise(x + ((r * " + cc + ") - (r * " + ss + ")), z + ((r * " + ss + ") + (r * " + cc + ")))");
+            sb.append(ig > 0 ? "\n    +" : "").append("n.noise(x + ((r * ").append(cc).append(") - (r * ").append(ss).append(")), z + ((r * ").append(ss).append(") + (r * ").append(cc).append(")))");
             ig++;
         }
 
@@ -364,7 +364,7 @@ public class IrisInterpolation {
             fb.append("};");
         }
 
-        sb.append(")/" + checks + "D;\n}");
+        sb.append(")/").append(checks).append("D;\n}");
         return fb + "\n" + sb;
     }
 
diff --git a/src/main/java/com/volmit/iris/util/network/DL.java b/src/main/java/com/volmit/iris/util/network/DL.java
index 797eb5a85..7fb46f07f 100644
--- a/src/main/java/com/volmit/iris/util/network/DL.java
+++ b/src/main/java/com/volmit/iris/util/network/DL.java
@@ -30,6 +30,7 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.net.URL;
 import java.net.URLConnection;
+import java.util.Arrays;
 
 public abstract class DL {
     protected File d;
@@ -65,9 +66,7 @@ public abstract class DL {
         flags = new KSet<>();
         latch = new ChronoLatch(500);
 
-        for(DownloadFlag i : downloadFlags) {
-            flags.add(i);
-        }
+        flags.addAll(Arrays.asList(downloadFlags));
     }
 
     public void monitor(DownloadMonitor m) {