ECR Private endpoint doesn't speed up image pull

I tried to set up a VPC endpoint for ECR, to speed up my deployments on ECS. I have 3 endpoints:

• com.amazonaws.us-east-2.s3 (Gateway)
• com.amazonaws.us-east-2.ecr.dkr (Interface)
• com.amazonaws.us-east-2.ecr.api (Interface)

When I pull my images from an EC2 instance in this VPC, here are the pull timers:

• Time of the docker pull without private endpoint: real 2m15.751s
• Time of the docker pull with the endpoints: real 2m12.833s

Isn't the private endpoint supposed to speed up the docker images pull from my private ECR ?

A dig to the ECR registry shows that it indeed points to the internal network:

$ dig XXXXXXXX.dkr.ecr.us-east-2.amazonaws.com

; <<>> DiG 9.11.4-P2-RedHat-9.11.4-26.P2.amzn2.13.1 <<>> XXXXXXXX.dkr.ecr.us-east-2.amazonaws.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2478
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;XXXXXXXX.dkr.ecr.us-east-2.amazonaws.com. IN A

;; ANSWER SECTION:
XXXXXXXX.dkr.ecr.us-east-2.amazonaws.com. 60 IN A 10.24.34.215
XXXXXXXX.dkr.ecr.us-east-2.amazonaws.com. 60 IN A 10.24.41.209
XXXXXXXX.dkr.ecr.us-east-2.amazonaws.com. 60 IN A 10.24.38.246

;; Query time: 2 msec
;; SERVER: 10.24.0.2#53(10.24.0.2)
;; WHEN: Wed Aug 23 10:06:09 UTC 2023
;; MSG SIZE  rcvd: 121

The S3 endpoint policy is the following:

{
	"Version": "2012-10-17",
	"Statement": [
		{
			"Effect": "Allow",
			"Principal": "*",
			"Action": "s3:GetObject",
			"Resource": [
				"arn:aws:s3:::prod-us-east-2-starport-layer-bucket/*",
				"arn:aws:s3:::amazonlinux.us-east-2.amazonaws.com/*",
				"arn:aws:s3:::amazonlinux-2-repos-us-east-2/*",
				"arn:aws:s3:::amazonlinux-2-repos-us-east-2.s3.dualstack/*"
			]
		},
		{
			"Effect": "Allow",
			"Principal": "*",
			"Action": "s3:GetObject",
			"Resource": "*"
		}
	]
}

Is there a reason why the download speed from ECR didn't change ? Am I missing something ?