Bad Performance on Blade 15 with Core X 3080 TI

Hello,
I recently bought a Razer Core X, with the GPU which is the Gigabyte Eagle RTX 3080 TI. And when I connect to my laptop, it seems like that the performance is worse, even worse than the laptop GPU. Like playing Forza Horizon, often lag spikes and never reach above 60 fps. I tried and did the following :
- try to disconnect the wifi to play the game
- install the driver for the GPU
- change the battery setting to high performance
- use the nvidia GPU for the PhysX
But still bad performance. But when I benchmark test the laptop performance, it gives a outstanding result, but not in games. Please I need help, because I spent a lot of money on this. These are the performance with the Core X
https://drive.google.com/file/d/1uTkpmmHox8LVpkFMSg2Rh_MR4D94qVEo/view?usp=drivesdk

These are the pictures of how I install the GPU
https://drive.google.com/drive/folders/14O_GbIrlyvgN972oJsUQk4HQo9fwXStm

These are the brief specs of my laptop.
Razer Blade 15 2022
Intel Core i9-12900H
Nvidia GeForce RTX 3070 TI
16 Gb DDR5
1 TB SSD
The laptop have Thunderbolt 4, while I use the cable that came from the eGPU, thunderbolt 3

Another one is the GPU which uses 12 Gb gddr6x.

I need immediate help. Your response will be very meaningful to me.

Thank you.