diff --git a/ape_solidity/compiler.py b/ape_solidity/compiler.py
index a778892..97fee09 100644
--- a/ape_solidity/compiler.py
+++ b/ape_solidity/compiler.py
@@ -912,7 +912,7 @@ def _flatten_source(
         path = Path(path)
         source_id = f"{get_relative_path(path, pm.path)}" if path.is_absolute() else f"{path}"
         handled.add(source_id)
-        relevant_imports = list(import_tree[path])
+        relevant_imports = sorted(list(import_tree[path]), key=lambda x: x.raw_value)
 
         final_source = ""
         for import_metadata in relevant_imports:
diff --git a/tests/test_cli.py b/tests/test_cli.py
index 1e719ad..495cbe9 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -8,6 +8,67 @@
 pragma solidity ^0.8.4;
 // SPDX-License-Identifier: MIT
 
+// File: ./././././././././././././././././././././././././././././././././././MissingPragma.sol
+
+contract MissingPragma {
+    function foo() pure public returns(bool) {
+        return true;
+    }
+}
+// File: ./NumerousDefinitions.sol
+
+struct Struct0 {
+    string name;
+    uint value;
+}
+
+struct Struct1 {
+    string name;
+    uint value;
+}
+
+struct Struct2 {
+    string name;
+    uint value;
+}
+
+struct Struct3 {
+    string name;
+    uint value;
+}
+
+struct Struct4 {
+    string name;
+    uint value;
+}
+
+struct Struct5 {
+    string name;
+    uint value;
+}
+
+contract NumerousDefinitions {
+    function foo() pure public returns(bool) {
+        return true;
+    }
+}
+// File: ./Source.extra.ext.sol
+
+// Showing sources with extra extensions are by default excluded,
+// unless used as an import somewhere in a non-excluded source.
+contract SourceExtraExt {
+    function foo() pure public returns(bool) {
+        return true;
+    }
+}
+// File: ./subfolder/Relativecontract.sol
+
+contract Relativecontract {
+
+    function foo() pure public returns(bool) {
+        return true;
+    }
+}
 // File: @browniedependency/contracts/BrownieContract.sol
 
 contract CompilingContract {
@@ -23,7 +84,7 @@
     }
 }
 
-// File: @dependency/contracts/Dependency.sol" as Depend2
+// File: @dependency/contracts/Dependency.sol
 
 struct DependencyStruct {
     string name;
@@ -56,7 +117,7 @@
 contract Enum {
     enum Operation {Call, DelegateCall}
 }
-// File: { MyStruct } from "contracts/CompilesOnce.sol
+// File: contracts/CompilesOnce.sol
 
 struct MyStruct {
     string name;
@@ -72,67 +133,6 @@
         return true;
     }
 }
-// File: ./././././././././././././././././././././././././././././././././././MissingPragma.sol
-
-contract MissingPragma {
-    function foo() pure public returns(bool) {
-        return true;
-    }
-}
-// File: { Struct0, Struct1, Struct2, Struct3, Struct4, Struct5 } from "./NumerousDefinitions.sol
-
-struct Struct0 {
-    string name;
-    uint value;
-}
-
-struct Struct1 {
-    string name;
-    uint value;
-}
-
-struct Struct2 {
-    string name;
-    uint value;
-}
-
-struct Struct3 {
-    string name;
-    uint value;
-}
-
-struct Struct4 {
-    string name;
-    uint value;
-}
-
-struct Struct5 {
-    string name;
-    uint value;
-}
-
-contract NumerousDefinitions {
-    function foo() pure public returns(bool) {
-        return true;
-    }
-}
-// File: ./Source.extra.ext.sol
-
-// Showing sources with extra extensions are by default excluded,
-// unless used as an import somewhere in a non-excluded source.
-contract SourceExtraExt {
-    function foo() pure public returns(bool) {
-        return true;
-    }
-}
-// File: ./subfolder/Relativecontract.sol
-
-contract Relativecontract {
-
-    function foo() pure public returns(bool) {
-        return true;
-    }
-}
 
 // File: Imports.sol
 
@@ -152,11 +152,12 @@
 
 
 def test_cli_flatten(project, cli_runner):
-    path = project.contracts_folder / "Imports.sol"
+    filename = "Imports.sol"
+    path = project.contracts_folder / filename
     arguments = ["flatten", str(path)]
     end = ("--project", str(project.path))
     with create_tempdir() as tmpdir:
-        file = tmpdir / "Imports.sol"
+        file = tmpdir / filename
         arguments.extend([str(file), *end])
         result = cli_runner.invoke(cli, arguments, catch_exceptions=False)
         assert result.exit_code == 0, result.stderr_bytes
diff --git a/tests/test_compiler.py b/tests/test_compiler.py
index 6f3b5e2..7ae4713 100644
--- a/tests/test_compiler.py
+++ b/tests/test_compiler.py
@@ -490,9 +490,16 @@ def test_compile_performance(benchmark, compiler, project):
         args=((path,),),
         kwargs={"project": project},
         rounds=1,
+        warmup_rounds=1,
     )
     assert len(result) > 0
 
+    # Currently seeing '~0.08; on macOS locally.
+    # Was seeing '~0.68' before https://github.com/ApeWorX/ape-solidity/pull/151
+    threshold = 0.2
+
+    assert benchmark.stats["median"] < threshold
+
 
 def test_compile_multiple_definitions_in_source(project, compiler):
     """