IPNC SWOSD update rate

  Hi, every gurus . 

this is My enviro:

DM8127 /  ipnc-3.8  / Davinci TMDSIPNCAM8127J3

 Now, I want to use SWOSD make a menu with IR control . The OSD must be able to quickly update . but , I found SWOSD only updated once in one second.

--->

int DM81XX_SWOSD_apply(int streamId, int frameBufAddrY, int frameBufAddrUV)
{                                         :

            /* SW OSD windows are updated once in a second */
            if (gSWOSD_config.swosdConfig[streamId].osd_count >=
                gSWOSD_config.swosdConfig[streamId].frameRateBase)
            {

}

Can 100 microseconds update?   thanks.