An SSD is part of the answer, but not all of it. Unless you have an absolutely high speed, super dooper PC with all the latest bells and whistles, and a truckload of RAM, loading addons can STILL slow you down.
As I’ve already replied to this thread, the ONLY ways currently to minimize load time are either to use minimal or no addons, or the use an addon manager that limits the number of addons the sim needs to load at run time, by NOT loading those addons that you really don’t want for the next flight. And if there was a way to prevent unwanted packages from loading as well, that would be a bonus, but I don’t believe that current addon managers can do that, for reasons that I have enumerated elsewhere.
See [RELEASE] Patch Notes (1.16.2.0) Now Available! for information about this.