diff --git a/src/coreclr/scripts/superpmi_benchmarks.py b/src/coreclr/scripts/superpmi_benchmarks.py
index d64ab61cf802a3..1b0cdd95f97f1b 100644
--- a/src/coreclr/scripts/superpmi_benchmarks.py
+++ b/src/coreclr/scripts/superpmi_benchmarks.py
@@ -179,7 +179,23 @@ def build_and_run(coreclr_args, output_mch_name):
         corerun_exe = "corerun"
         script_name = "run_benchmarks.sh"
 
-    make_executable(dotnet_exe)
+    # Set up NuGet cache locations to be within the performance_directory which is on a separate disk
+    # so that we don't fill up the OS disk (space is limited on helix machines)
+    os.environ["NUGET_PLUGINS_CACHE_PATH"] = os.path.join(performance_directory, "NUGET_PLUGINS_CACHE_PATH")
+    os.environ["NUGET_PACKAGES"] = os.path.join(performance_directory, "NUGET_PACKAGES")
+    os.environ["NUGET_HTTP_CACHE_PATH"] = os.path.join(performance_directory, "NUGET_HTTP_CACHE_PATH")
+    os.environ["NUGET_SCRATCH"] = os.path.join(performance_directory, "NUGET_SCRATCH")
+
+    # Install the dotnet sdk using the script within the performance repo
+    dotnet_script = os.path.join(performance_directory, "scripts", "dotnet.py")
+    run_command([python_path,
+                dotnet_script,
+                "install",
+                "--architecture",
+                    arch,
+                "--channels",
+                "main",
+                "--verbose"])
 
     # Start with a "dotnet --info" to see what we've got.
     run_command([dotnet_exe, "--info"])
diff --git a/src/coreclr/scripts/superpmi_collect_setup.py b/src/coreclr/scripts/superpmi_collect_setup.py
index 9a829e77ff968b..2268623a6ba633 100644
--- a/src/coreclr/scripts/superpmi_collect_setup.py
+++ b/src/coreclr/scripts/superpmi_collect_setup.py
@@ -403,19 +403,6 @@ def setup_benchmark(workitem_directory, arch):
     except Exception as ex:
         print("Warning: failed to remove directory \"%s\": %s", os.path.join(performance_directory, ".git"), ex)
 
-    with ChangeDir(performance_directory):
-        dotnet_directory = os.path.join(performance_directory, "tools", "dotnet", arch)
-        dotnet_install_script = os.path.join(performance_directory, "scripts", "dotnet.py")
-
-        if not os.path.isfile(dotnet_install_script):
-            print("Missing " + dotnet_install_script)
-            return
-
-        run_command(
-            get_python_name() + [dotnet_install_script, "install", "--channels", "10.0", "--architecture", arch, "--install-dir",
-                                 dotnet_directory, "--verbose"])
-
-
 def get_python_name():
     """Gets the python name