diff --git a/common/src/main/java/org/embeddedt/modernfix/common/mixin/perf/nbt_memory_usage/CompoundTag1Mixin.java b/common/src/main/java/org/embeddedt/modernfix/common/mixin/perf/nbt_memory_usage/CompoundTag1Mixin.java
deleted file mode 100644
index 8034f856..00000000
--- a/common/src/main/java/org/embeddedt/modernfix/common/mixin/perf/nbt_memory_usage/CompoundTag1Mixin.java
+++ /dev/null
@@ -1,20 +0,0 @@
-package org.embeddedt.modernfix.common.mixin.perf.nbt_memory_usage;
-
-import net.minecraft.nbt.Tag;
-import org.embeddedt.modernfix.util.CanonizingStringMap;
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.injection.At;
-import org.spongepowered.asm.mixin.injection.ModifyVariable;
-
-import java.util.Map;
-
-@Mixin(targets = "net/minecraft/nbt/CompoundTag$1")
-public class CompoundTag1Mixin {
-    @ModifyVariable(method = "load(Ljava/io/DataInput;ILnet/minecraft/nbt/NbtAccounter;)Lnet/minecraft/nbt/CompoundTag;", at = @At(value = "INVOKE_ASSIGN", target = "Lcom/google/common/collect/Maps;newHashMap()Ljava/util/HashMap;", remap = false))
-    private Map<String, Tag> modifyMap(Map<String, Tag> map) {
-        CanonizingStringMap<Tag> newMap =  new CanonizingStringMap<>();
-        if(map != null)
-            newMap.putAll(map);
-        return newMap;
-    }
-}
\ No newline at end of file
diff --git a/common/src/main/java/org/embeddedt/modernfix/common/mixin/perf/nbt_memory_usage/CompoundTagMixin.java b/common/src/main/java/org/embeddedt/modernfix/common/mixin/perf/nbt_memory_usage/CompoundTagMixin.java
deleted file mode 100644
index 274af319..00000000
--- a/common/src/main/java/org/embeddedt/modernfix/common/mixin/perf/nbt_memory_usage/CompoundTagMixin.java
+++ /dev/null
@@ -1,40 +0,0 @@
-package org.embeddedt.modernfix.common.mixin.perf.nbt_memory_usage;
-
-import net.minecraft.nbt.CompoundTag;
-import net.minecraft.nbt.Tag;
-import org.embeddedt.modernfix.util.CanonizingStringMap;
-import org.spongepowered.asm.mixin.*;
-import org.spongepowered.asm.mixin.injection.At;
-import org.spongepowered.asm.mixin.injection.Inject;
-import org.spongepowered.asm.mixin.injection.ModifyArg;
-import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
-
-import java.util.Map;
-
-@Mixin(CompoundTag.class)
-public class CompoundTagMixin {
-    @Shadow @Final
-    private Map<String, Tag> tags;
-
-    /**
-     * Ensure that the default backing map is a CanonizingStringMap.
-     */
-    @ModifyArg(method = "<init>()V", at = @At(value = "INVOKE", target = "Lnet/minecraft/nbt/CompoundTag;<init>(Ljava/util/Map;)V"), index = 0)
-    private static Map<String, Tag> useCanonizingStringMap(Map<String, Tag> incoming) {
-        CanonizingStringMap<Tag> newMap = new CanonizingStringMap<>();
-        if(incoming != null)
-            newMap.putAll(incoming);
-        return newMap;
-    }
-
-    /**
-     * @author embeddedt
-     * @reason use more efficient method when copying canonizing string map
-     */
-    @Inject(method = "copy()Lnet/minecraft/nbt/CompoundTag;", at = @At("HEAD"), cancellable = true)
-    public void copyEfficient(CallbackInfoReturnable<Tag> cir) {
-        if(this.tags instanceof CanonizingStringMap) {
-            cir.setReturnValue(new CompoundTag(CanonizingStringMap.deepCopy((CanonizingStringMap<Tag>)this.tags, Tag::copy)));
-        }
-    }
-}