Weak 5Ghz signal. wAP ac, WISP, indoors.

As the title suggests..

Desktop pc is approximately 5 meters/16 feet away with one wall in between and I’m getting one bar. 100mbps dsl connection, getting around 30 ping / 30mbps over wifi with a 5ghz AC 1300+ TP-link Archer T6E adapter.

Interface settings:
Wireless: Band: 5Ghz A/N/AC - Channel Width: 20/40/80MHz eCee - Frequency: auto - Frequency mode: regulatory-domain - Antenna gain: 0 - WMM support: disabled - bridge mode: enabled
Data rates: default
Advanced: max station count: 2007 - Distance: indoors - HW retries: 7 - HW protection mode: none - threshold: 0 - Frame lifetime: 0 - Adaptive noise immunity: none - Preamble mode: both
Tx power mode: default

Only recently got the wAP so please let me know if there is any more info worth providing.

Appreciate your time, thanks!