How Lv_chat every 5ms once update though lv_task

How-to
1

What MCU/Processor/Board and compiler are you using?
stm32h743ii, stm32cubeide, gcc

What LVGL version are you using?
v 7

What do you want to achieve?
Need 5ms once 3 lv_chart update though lv_task without timer delay.

Code :
lv_task_handler();
lv_task_t* task = lv_task_create(task_cb,5,LV_TASK_PRIO_HIGH,NULL);//5ms

void task_cblv_task_t task)
{
lv_chart_set_next(chart_1, series_1,data);
lv_chart_set_next(chart_2, series_2,data);
lv_chart_set_next(chart_3, series_3,data);
}

lv_chart run 5ms timer task but 20ms taken.
#define LV_DISP_DEF_REFR_PERIOD 1 changed in code.
If achive 5ms once any change do in lv_conf.h file?.