hostapd conf 802.11ac QCA9984

[Nassim Dahmani]

Hi everyone,

I am using a zcomax QCA9984 with candela driver to setup an access
points, it works I don't have any problems but the best debit i can
have is 22-24 Mo/s on one device which is really low when we know the
theorical 1,7 Gb/s that the card can provide,

Here is my current hostapd conf:

### hostapd configuration file
interface=wlp1s0
driver=nl80211

### IEEE 802.11
ssid=test5g
hw_mode=a
channel=0
max_num_sta=128
auth_algs=1

### DFS
country_code=FR
ieee80211d=1
#ieee80211h=1

### IEEE 802.11n
ieee80211n=1
ht_capab=[HT40+][LDPC][SHORT-GI-20][SHORT-GI-40][TX-STBC][RX-STBC1][DSSS_CCK-40]

### IEEE 802.11ac
ieee80211ac=1
vht_oper_chwidth=1
vht_capab=[MAX-MPDU-11454][RXLDPC][SHORT-GI-80][TX-STBC-2BY1][RX-STBC-1]
vht_oper_centr_freq_seg0_idx=42

### IEEE 802.11i
wpa=2
wpa_key_mgmt=WPA-PSK
wpa_passphrase=123456789
rsn_pairwise=CCMP

### hostapd event logger
logger_syslog=-1
logger_syslog_level=2
logger_stdout=-1
logger_stdout_level=2

### WMM
wmm_enabled=1
uapsd_advertisement_enabled=1
wmm_ac_bk_cwmin=4
wmm_ac_bk_cwmax=10
wmm_ac_bk_aifs=7


Do you knwo how I can improve my conf to increase my debit? I am a
newbie on this so if I forgot something please tell me i'll send it to
you.
Thanks for your help.

Best Regards