Upgraded from 500mbps to 1gbps - not getting 1gbps

Hi, I upgraded my plan from 500mbps to 1gbps on April 1 but it seems that I'm not getting the advertised speed (tried speed testing with ethernet cable) and it maxed out at 540mbps download but I'm getting around 700mbps upload.

I use my own router the TP-Link Archer AXE75 (AXE5400). Tried on two different laptops. Anyone else recently upgraded? Any settings to change? Or is it automatic?

I'll call them soon but just wanted to hear from the community first. Thanks!