First impression? I like the title and synopsis. The synopsis is short and to the point, but it kinda fits the style of the 'speedrun' mentioned, so I can tell the narrative tone you're going for. I personally don't like in-game or system novels, but this novel doesn't look too bad.
And the first chapter was indeed generic, but I wouldn't hold it against you; sometimes your beautiful story has a generic start, and it can't be helped. I might trim it down so it doesn't feel boring, though. And the later part has the opposite problem; if your novel is going to focus on the game, I would like more detail about said game. Naturally.
The comedy was nice. I like how you don't overuse names. Gangster 1, 2, and 3 is perfect.
Since you only wrote one chapter, that's all I have to review for now. Good luck, lol.