diff --git a/codeGrader/backend/api/app.py b/codeGrader/backend/api/app.py
index 4233d55..9b4d9a9 100644
--- a/codeGrader/backend/api/app.py
+++ b/codeGrader/backend/api/app.py
@@ -537,6 +537,7 @@ def addSubmission() -> dict:
 
 
 @app.route("/submission/<int:id_>", methods=["GET"])
+@cache.memoize(config.cache_timeout, unless=cache_bypass)
 @authentication
 def submission(id_) -> dict:
     """
@@ -551,6 +552,7 @@ def submission(id_) -> dict:
 
 
 @app.route("/submissions", methods=['GET'])
+@cache.cached(config.cache_timeout, unless=cache_bypass, query_string=True)
 @authentication
 def submissions() -> dict:
     """
@@ -594,6 +596,7 @@ def testcase(id_) -> dict:
 
 
 @app.route("/testcases", methods=['GET'])
+@cache.cached(config.cache_timeout, unless=cache_bypass, query_string=True)
 @authentication
 def testcases() -> dict:
     """
diff --git a/codeGrader/backend/db/Exercise.py b/codeGrader/backend/db/Exercise.py
index be449d3..8dc28be 100644
--- a/codeGrader/backend/db/Exercise.py
+++ b/codeGrader/backend/db/Exercise.py
@@ -78,7 +78,7 @@ class Exercise(Base):
         passive_deletes=True,
         lazy="subquery",
         join_depth=3,
-        backref=backref("TaskExercise", lazy="joined", join_depth=3)
+        backref=backref("TaskExercise", lazy="subquery", join_depth=3)
     )
 
     def get_profile(self):
diff --git a/codeGrader/backend/db/Subject.py b/codeGrader/backend/db/Subject.py
index 35dd302..9ecb0e4 100644
--- a/codeGrader/backend/db/Subject.py
+++ b/codeGrader/backend/db/Subject.py
@@ -72,7 +72,8 @@ class Subject(Base):
         cascade="all",
         passive_deletes=True,
         lazy="subquery",
-        backref=backref("ExerciseSubject", lazy="joined")
+        join_depth=1,
+        backref=backref("ExerciseSubject", lazy="joined", join_depth=1)
     )
 
     memberships = relationship(
@@ -83,7 +84,7 @@ class Subject(Base):
         cascade="all",
         passive_deletes=True,
         lazy="noload",
-        backref=backref("MembershipSubject", lazy="joined", join_depth=3)
+        backref=backref("MembershipSubject", lazy="joined", join_depth=2)
     )
 
     def get_profile(self) -> dict:
diff --git a/codeGrader/backend/db/Task.py b/codeGrader/backend/db/Task.py
index b38bd11..1f986d9 100644
--- a/codeGrader/backend/db/Task.py
+++ b/codeGrader/backend/db/Task.py
@@ -108,7 +108,7 @@ class Task(Base):
         cascade="all",
         passive_deletes=True,
         lazy="subquery",
-        backref=backref("TaskTestCase", lazy="subquery")
+        backref=backref("TaskTestCase", lazy="noload")
     )
 
     def get_profile(self) -> dict:
diff --git a/codeGrader/backend/db/TestCase.py b/codeGrader/backend/db/TestCase.py
index 4e8d627..2622027 100644
--- a/codeGrader/backend/db/TestCase.py
+++ b/codeGrader/backend/db/TestCase.py
@@ -104,8 +104,8 @@ def toJson(self, recursive: bool = True) -> dict:
 
         out = dict()
         out["id"] = self.id
-        out["task"] = self.TaskTestCase.toJson()
-        out["task_id"] = out["task"]["id"]
+        #out["task"] = self.TaskTestCase.toJson()
+        out["task_id"] = self.task_id
         out["input_file"] = self.input_file.toJson(include_binary=False)
         out["input_file_id"] = self.input_file.id
         out["output_file"] = self.output_file.toJson(include_binary=False)
diff --git a/codeGrader/frontend/admin/templates/task.html b/codeGrader/frontend/admin/templates/task.html
index 8869ace..1969513 100644
--- a/codeGrader/frontend/admin/templates/task.html
+++ b/codeGrader/frontend/admin/templates/task.html
@@ -451,7 +451,7 @@ <h2 class="accordion-header">
                                     </th>
                                 </tr>
 
-                                {% for sub in submissions | sort(attribute='id') %}
+                                {% for sub in submissions | sort(reverse=true, attribute='id') %}
                                 <tr>
                                     <td>
                                         {{ sub["id"] }}