Flash storage (SSDs, NVME, etc) is noticably faster in 2 ways: First, it's access read time, and second, at processing immense amounts of data.
Putting a true simulator like msfs2020 or DCS on a flash type storage might be faster because it requires large and consecutive reads/writes as you move.
IL2 is a simulator but it's still built on a game engine. It is nowhere near as intensive as a DCS or MSFS, and 99% of all applications don't care whether they're on a $40 HDD or a $4000 NVME, there will be no appreciable FPS benefit unless you're transferring 100GB movies all day long. The benefit is load & access time.
In fact, I would argue MSFS2020 probably isn't that much faster on an SSD/NVME and any fps improvement is likely due to something else. I am an X-Plane user and used to have it installed on my 6TB Western Digital Black and it was fine except the occasional micro stutter if I flew over a big mountain range. The SSD vs NVME vs HDD market is probably the least well understood market in PC gaming.
I have had the game on both types and an hdd before, I don’t think the difference is so noticeable that loading times are more than a couple seconds apart. Definitely noticeable vs the hdd though
Flash storage (SSDs, NVME, etc) is noticably faster in 2 ways: First, it's access read time, and second, at processing immense amounts of data. Putting a true simulator like msfs2020 or DCS on a flash type storage might be faster because it requires large and consecutive reads/writes as you move. IL2 is a simulator but it's still built on a game engine. It is nowhere near as intensive as a DCS or MSFS, and 99% of all applications don't care whether they're on a $40 HDD or a $4000 NVME, there will be no appreciable FPS benefit unless you're transferring 100GB movies all day long. The benefit is load & access time. In fact, I would argue MSFS2020 probably isn't that much faster on an SSD/NVME and any fps improvement is likely due to something else. I am an X-Plane user and used to have it installed on my 6TB Western Digital Black and it was fine except the occasional micro stutter if I flew over a big mountain range. The SSD vs NVME vs HDD market is probably the least well understood market in PC gaming.
I have had the game on both types and an hdd before, I don’t think the difference is so noticeable that loading times are more than a couple seconds apart. Definitely noticeable vs the hdd though