Silent Hunter 4 mods on better graphic

Hello everyone, I decided to go back to Silent Hunter 4, but this game is already outdated, and I would like a mod to improve the graphics, I know there is a Subsim website but I can't log in to it because I can't answer the question XD. I know it's weird but it's true, if anyone could help or send me a mod for better graphics. And what other mods do you recommend for SH4 or SH5, only those that are still relatively easy because I always played SH on the easy difficulty level, I've heard about TWOS and Rising of the Fallen Sun, what are the differences between these mods? I would be grateful for an explanation

Hello everyone, I decided to go back to Silent Hunter 4, but this game is already outdated, and I would like a mod to improve the graphics, I know there is a Subsim website but I can't log in to it because I can't answer the question XD. I know it's weird but it's true, if anyone could help or send me a mod for better graphics. And what other mods do you recommend for SH4 or SH5, only those that are still relatively easy because I always played SH on the easy difficulty level, I've heard about TWOS and Rising of the Fallen Sun, what are the differences between these mods? I would be grateful for an explanation