docs(km) note Kong Manager perf issue in traditional mode (#4015)

* Add note for Kong Manager perf issue in traditional mode

* Vale changes

* vale and copy edit

Co-authored-by: angel <angel.guarisma@konghq.com>

app/gateway/2.8.x/index.md

@@ -18,9 +18,9 @@ With {{site.base_gateway}}, users can:
 * Create a thriving API developer ecosystem
 * Proactively identify API-related anomalies and threats
 * Secure and govern APIs/services, and improve API visibility across the
-entire organization
+entire organization.
 
-## Extending the Kong Gateway
+## Extending the {{site.base_gateway}}
 
 {{site.base_gateway}} is a Lua application running in Nginx. {{site.base_gateway}}
 is distributed along with [OpenResty](https://openresty.org/), which is a bundle
@@ -43,11 +43,11 @@ the [PDK reference](/gateway/{{page.kong_version}}/pdk), and the guide on
 
 {{site.base_gateway}} is available in the following modes:
 
-**Kong Gateway (OSS)**: an open-source package containing the basic API gateway
+**{{site.base_gateway}} (OSS)**: an open-source package containing the basic API gateway
 functionality and open-source plugins. You can manage the open-source Gateway
 with Kong's [Admin API](#kong-admin-api) or with [declarative configuration](#deck).
 
-**Kong Gateway** (available in
+**{{site.base_gateway}}** (available in
 [Free, Plus, or Enterprise modes](https://konghq.com/pricing)): Kong's API gateway
 with added functionality.
 * <span class="badge free"></span> In **Free mode**,
@@ -89,6 +89,12 @@ using the Kong Admin API.
 ### Kong Manager
 {:.badge .free}
 
+{:.note}
+> **Note**: If you are running Kong in traditional mode, increased traffic could
+> lead to potential performance with Kong Proxy.
+> Server-side sorting and filtering large quantities of entities will also cause increased CPU usage in both Kong CP and database.
+
+
 [Kong Manager](/gateway/{{page.kong_version}}/configure/auth/kong-manager) is
 the graphical user interface (GUI) for {{site.base_gateway}}. It uses the Kong
 Admin API under the hood to administer and control {{site.base_gateway}}.
@@ -116,7 +122,7 @@ object-level health using intuitive, customizable dashboards
 
 {{site.base_gateway}} can run natively on Kubernetes with its custom [ingress controller](/kubernetes-ingress-controller/), Helm chart, and Operator. A Kubernetes ingress controller is a proxy that exposes Kubernetes services from applications (for example, Deployments, ReplicaSets) running on a Kubernetes cluster to client applications running outside of the cluster. The intent of an ingress controller is to provide a single point of control for all incoming traffic into the Kubernetes cluster.
 
-### Kong Gateway plugins
+### {{site.base_gateway}} plugins
 
 [{{site.base_gateway}} plugins](/hub/) provide advanced functionality to better manage your API and microservices. With turnkey capabilities to meet the most challenging use cases, {{site.base_gateway}} plugins ensure maximum control and minimizes unnecessary overhead. Enable features like authentication, rate-limiting, and transformations by enabling {{site.base_gateway}} plugins through Kong Manager or the Admin API.
 
@@ -129,17 +135,17 @@ Kong also provides API lifecycle management tools that you can use with {{site.b
 
 ### decK
 [decK](/deck) helps manage {{site.base_gateway}}’s configuration in a declarative fashion.
-This means that a developer can define the desired state of Kong Gateway or
-Konnect &ndash; services, routes, plugins, and more &ndash; and let decK handle
+This means that a developer can define the desired state of {{site.base_gateway}} or
+{{site.konnect_short_name}} &ndash; services, routes, plugins, and more &ndash; and let decK handle
 implementation without needing to execute each step manually, as you would with
 the Kong Admin API.
 
 
-## Get started with Kong Gateway
+## Get started with {{site.base_gateway}}
 
-[Download and install Kong Gateway](/gateway/{{page.kong_version}}/install-and-run).
+[Download and install {{site.base_gateway}}](/gateway/{{page.kong_version}}/install-and-run).
 To test it out, you can choose either the open-source package, or
-run Kong Gateway in free mode and also try out Kong Manager.
+run {{site.base_gateway}} in free mode and also try out Kong Manager.
 
 After installation, get started with one of our introductory guides:
 * **[Quickstart](/gateway/{{page.kong_version}}/get-started/quickstart)**: An introduction to
@@ -149,7 +155,7 @@ The complete {{site.base_gateway}}
 getting started guide provides in-depth examples, explanations, and step-by-step
 instructions, and explores Kong's many available tools for managing the gateway.
 
-### Try in Konnect
+### Try in {{site.konnect_short_name}}
 
 [{{site.konnect_product_name}}](/konnect/) can manage {{site.base_gateway}}
 instances. With this setup, Kong hosts the control plane and you host your