Remembering I’m in AP mode.Except passing traffic/routing/NAT is accelerated by a hardware ASIC assuming you don't have features enabled that disables that. Generating traffic (and most other software functions like aiprotection, parental controls, QOS, VPN, etc) are either partially accelerated or not at all.
Routing typically will use a different CPU from applications too.
My AC1900 can pass close to 1Gbps with all those features disabled, and around 500 with aiprotection etc enabled. In the second scenario, NAT acceleration is enabled but hardware/routing is not.