Plotting the accelerometer data acquired from LSM6DSL

Hi everyone. I want to use SWV on my TRUE STUDIO project to view my accelerometer data coming from LSM6DSL module. Data rate is 416 Hz and i'm using 4 wire SPI to get this data. SPI speed is 2.66 MHz. But when i turn on SWV, data are plotted very slow and it also slows down ATOLLIC platform entirely. What is the problem? Is there any suggestion to solve this problem?

Thanks.