BUG: gl_part_gunshots 1 yellow sparks (dis)appear

[Matrix-QW]

ezQuake version:
3.6.4

OS/device including version:
GTX 1060, driver 552.22, vid_renderer 1

Describe the bug
Depending on the fps value used it shows some yellow sparks in the middle of the smoke.
Up to 770fps the yellow sparks are there, 847 to 1694 they disappear, 1771 and 1848 they act randomly and 1925+ they always show up.

To Reproduce
Steps to reproduce the behavior:

1. Set cl_maxfps 1001
2. Set gl_part_gunshots 1
3. Shoot sg/ssg
4. Set cl_maxfps 770
5. Shoot sg/ssg

Expected behavior
Show the yellow sparks with any fps value.

Additional context
Actually, I would rather not see them but there might be someone or for streaming/videos that want to see them, so by fixing the bug it would be good to add a new variable to disable them, like gl_part_gunshots_sparks 0/1.
This is a bug report and a feature request at the same time.

Screenshots