diff --git a/docs/release-notes/version-2.6.md b/docs/release-notes/version-2.6.md
index 4e26ffab4..e175dc919 100644
--- a/docs/release-notes/version-2.6.md
+++ b/docs/release-notes/version-2.6.md
@@ -8,6 +8,7 @@
 * [#3705](https://github.com/netbox-community/netbox/issues/3705) - Provide request context when executing custom scripts
 * [#3762](https://github.com/netbox-community/netbox/issues/3762) - Add date/time picker widgets
 * [#3788](https://github.com/netbox-community/netbox/issues/3788) - Enable partial search for inventory items
+* [#3812](https://github.com/netbox-community/netbox/issues/3812) - Optimize size of pages containing a dynamic selection field
 
 ## Bug Fixes
 
diff --git a/netbox/utilities/forms.py b/netbox/utilities/forms.py
index 44d76186d..eeee719ae 100644
--- a/netbox/utilities/forms.py
+++ b/netbox/utilities/forms.py
@@ -285,6 +285,8 @@ class APISelect(SelectWithDisabled):
         name of the query param and the value if the query param's value.
     :param null_option: If true, include the static null option in the selection list.
     """
+    # Only preload the selected option(s); new options are dynamically displayed and added via the API
+    template_name = 'widgets/select_api.html'
 
     def __init__(
         self,
diff --git a/netbox/utilities/templates/widgets/select_api.html b/netbox/utilities/templates/widgets/select_api.html
new file mode 100644
index 000000000..0146a31ff
--- /dev/null
+++ b/netbox/utilities/templates/widgets/select_api.html
@@ -0,0 +1,5 @@
+<select name="{{ widget.name }}"{% include "django/forms/widgets/attrs.html" %}>{% for group_name, group_choices, group_index in widget.optgroups %}{% if group_name %}
+  <optgroup label="{{ group_name }}">{% endif %}{% for widget in group_choices %}{% if widget.attrs.selected %}
+  {% include widget.template_name %}{% endif %}{% endfor %}{% if group_name %}
+  </optgroup>{% endif %}{% endfor %}
+</select>