diff --git a/reflex/app.py b/reflex/app.py
index 0ecd3e462..36a077161 100644
--- a/reflex/app.py
+++ b/reflex/app.py
@@ -9,6 +9,8 @@ import dataclasses
 import functools
 import inspect
 import io
+import multiprocess
+from pathos import multiprocessing, pools
 import os
 import platform
 import sys
@@ -177,7 +179,7 @@ class OverlayFragment(Fragment):
 class UncompiledPage:
     """An uncompiled page."""
 
-    component: Union[Component, ComponentCallable]
+    component: Component
     route: str
     title: str
     description: str
@@ -239,6 +241,9 @@ class App(MiddlewareMixin, LifespanMixin, Base):
     # A map from a route to an uncompiled page. PRIVATE.
     uncompiled_pages: Dict[str, UncompiledPage] = {}
 
+    # A map from a route to an uncompiled page. PRIVATE.
+    uncompiled_pages: Dict[str, UncompiledPage] = {}
+
     # A map from a page route to the component to render. Users should use `add_page`. PRIVATE.
     pages: Dict[str, Component] = {}
 
@@ -534,6 +539,31 @@ class App(MiddlewareMixin, LifespanMixin, Base):
         state = self.state if self.state else State
         state.setup_dynamic_args(get_route_args(route))
 
+        if on_load:
+            self.load_events[route] = (
+                on_load if isinstance(on_load, list) else [on_load]
+            )
+
+        self.uncompiled_pages[route] = UncompiledPage(
+            component=component,
+            route=route,
+            title=title,
+            description=description,
+            image=image,
+            on_load=on_load,
+            meta=meta,
+        )
+
+    def _compile_page(self, route: str):
+        """Compile a page.
+
+        Args:
+            route: The route of the page to compile.
+        """
+        uncompiled_page = self.uncompiled_pages[route]
+
+        on_load = uncompiled_page.on_load
+
         if on_load:
             self.load_events[route] = (
                 on_load if isinstance(on_load, list) else [on_load]