Consumer Rights for underperforming computer

I bought a new laptop computer last year that was advertised as a gaming laptop (HP Victus 144Hz 16GB RAM - unsure of exact model number but RRP was over $2000).

Although advertised as a gaming laptop, it constantly lags and skips. This is especially noticeable and a problem when I do video editing on Adobe Premiere Pro. It doesn't seem to be able to process video and graphics very well. My much older laptop with worse specs never had problems like this.

I'm not sure if it is a hardware issue, or a firmware one, or compatibility issue. I don't know what my rights are under the CGA when the computer itself isn't technically broken. It just isn't performing to spec or as I expected.

Can I take it back and ask for a refund or a replacement?