Try this firstly, Turn on Subtitles in GOM player.
- Click the "GOM" logo in the upper-left corner of the main GOM Player interface.
- Mouse over the menu option reading "Subtitles."
- Click the "Show Subtitles" option. This will enable the subtitles for a video file, causing them to immediately display on screen.
- Increase the size, spacing and position of the subtitles using the options in the "Subtitles" drop-down menu. If you want to move the subtitles farther down the screen, for example, select the "Down by 2%" option. If you want to increase the font size of the subtitles select the "Enlarge Font Size" option.