Question Understanding GPU usage (Depth pass)

Currently I have shadows disabled, so I know for sure that the whole of the orange part of the graph is the Depth part of "Shadows/Depth". What I want to know, is why my particles consume so much time doing "Depth" and so little time rendering. Is it so that stuff behind them don't draw? Can I disable it?
The shader being used is "Particles/Standard Surface"

OBS: In case this matters, I have a ton of particle managers with a few particles each rather than one particle manager with all of them (Will fix later)

OBS2: The particles use mesh rendering (a two sided quad, 4 triangles) so that they can be a two sided quad that does the backside lighting properly.

Please ask away any info I didn't share, since I have very little idea of what is the cause of this.