feat(ins): update wording

Author: bene2k1

pages/instances/reference-content/choosing-shared-vs-dedicated-cpus.mdx

@@ -10,12 +10,15 @@ categories:
 dates:
   validation: 2025-04-18
   posted: 2025-04-18
-tags: instance, type, stardust, range, vcpu, hyperthread, core, ram, bandwidth, dedicated, shared, memory, hypervisor, vm, storage, dev1, play2, gp1, pro2, ent1, gpu, arm, learning, development, production, production-optimized, cost-optimized, memory-optimized, storage-optimized
+tags: instance, cpu, vcpu, shared, dedicated
 ---
 
 When deploying a Scaleway Instance, selecting the appropriate CPU provisioning is key for optimizing performance and cost.
 
-Two types of CPU provisioning are available for Instances: **shared** and **dedicated** CPUs.
+All Instances are deployed on large, powerful physical servers powered by the latest datacenter-grade CPUs. A hypervisor splits the large physical machine into smaller virtual units on these machines.
+The hypervisor manages the allocation and scheduling of physical resources such as CPU or RAM. While RAM is always allocated dedicated per Instance, two types of CPU provisioning are available: **shared** and **dedicated** CPUs.
+
+Understanding the difference between these two techniques is key to making an informed decision about the best Instance for your application.
 
 ## Comparison of shared and dedicated CPU Instances
 
@@ -45,7 +48,7 @@ As a result, Instances share physical CPU time, and during peak demand from othe
 
 ### Summary
 - Shared CPU Instances provide an affordable solution for non-critical workloads.
-- CPU performance is less predictable and may fluctuate depending on neighboring workloads ("noisy neighbours").
+- CPU performance is less predictable and may fluctuate depending on neighboring workloads ("noisy neighbors").
 - During peak usage, your workloads might experience temporary slowdowns due to CPU steal.
 
 ## Dedicated CPU Instances
@@ -65,7 +68,7 @@ This ensures consistent and predictable performance at all times. Dedicated CPU
 ### Summary
 - Dedicated CPU allocation ensures consistent and predictable performance.
 - No risk of performance degradation due to neighboring workloads.
-- Dedicated CPU Instances are more expensive than shared CPU Instances, but offer guaranteed CPU performance.
+- Dedicated CPU Instances are more expensive than shared CPU Instances but offer guaranteed CPU performance.
 
 ## Choosing the best configuration