its hard to optimize but this config seem to hold onto around 25 MB/s all the time while copying via file explorer

Intel AC 7270 Wifi Card

  • 802.11n Channel Width for 2.4ghz: Auto
  • 802.11n Channel Width for 5.2ghz: Auto
  • Ad Hoc Channel 802.11b/g: 1
  • Ad Hoc QoS Mode: WMM: Disabled
  • ARP offload for WoLAN: Enabled
  • Bluetooth AMP: Disabled
  • Fat Channel Intolerant: Disabled
  • GTK rekeying for WoWLAN: Enabled
  • HT Mode: VHD Mode
  • Mixed Mode Protection: CTS-Self Enabled
  • NS offload for WoWLAN: Enabled
  • Packet Coalescing: Enabled
  • Preferred Band: 3: Prefer 5.2GHz band
  • Roaming Aggressiveness: 1. Lowest
  • Sleep on WoWLAN Disconnect: Disabled
  • Throughput Booster: Disabled
  • Transmit Power: 6. Highest
  • U-APSD support: Disabled
  • Wake on Magic Packet: Enabled
  • Wake on Pattern Match: Enabled
  • Wireless Mode: 6. 802.11a/b/g

ASUS AC-87 AC Router

Advanced Settings > Wireless > General

  • Band: 5GHz
  • Network Name: yournetwork
  • Hide SSID No
  • Wireless Mode: Auto
  • Channel bandwidth: 80 MHz
  • Control Channel: Between 100 and 112
  • Extension Channel: Auto
  • Authentication Method: WPA2-Personal
  • WPA Encryption: AES
  • WPA-Pre-Shared Key: yourwifikey
  • Protected Management Frames: Disable
  • Group Key Rotation Interval: 3600

Advanced Settings > Wireless > Professional

  • Band: 5GHz
  • Enable Radio: Yes
  • Enable Wireless Scheduler: No
  • Set AP Isolated: No
  • Roaming assistant: Disable
  • Enable IGMP Snooping: Disable
  • DTIM Interval: 3
  • Beacon Interval: 100
  • Multi-User MIMO: Enable
  • 802.11ac Beamforming: Enable
  • Universal Beamforming: Disable
  • Tx Power adjustment: Performance