Is Giant Crest -> FOX 34 Rhytm upgrade worth it?

I have a Giant Fathom with the stock Giant Crest 130mm fork. In general I am fine with the fork as it is, I don’t have that much experience anyway and can’t compare it with some other forks to know what is good about it and where it might lack. My only complaint is that it seems to me the Crest fork does not absorb too well small bumps at high speed - when I ride faster and there are small bumps on the path, the bike throws me around too much and it’s hard to control it. But as I said, I don’t have that much experience, so that could be either skill issue on my end or the fork might need more adjustment.

Anyway, I wasn’t looking to upgrade it, but I found a new unbranded (plain black) Fox Rhythm 34 fork with the GRIP damper for about 200 euro from an online shop here, so I am wondering if this would be a significant upgrade? I don’t really want to replace the fork, I don’t have what to do with the old one, and it’s just more clutter in the end, but if the Fox would really provide significant and noticeable performance difference I might go with it. What should I expect if I replace the fork?