If all this talk of Bloodlines and Bloodlines 2 is inspiring you to go try out the original, please remember to install the unofficial patch. Seriously. You're more or less incapable of finishing the game otherwise due to multiple potential hard locking bugs. Plus it fixes a ton of other minor stuff.
The game itself is great though and worth your time. It devolves a bit in the second half as you get into the parts that were thrown together by the rushed production, but the writing, OST and atmosphere alone are worth experiencing.
How is the gameplay. Often these old games are rightfully praised for their writing but I cannot force myself to play Baldurs gate because the gameplay looks soo tiresome to me
Well, it's first person shooter where shooting is pretty bad (unless you invest a lot of skill points in it). Melee is okayish, very simple, basically button mashing. Luckily combat is just a minor part of the game. Dialogues, story, atmosphere, all this very much compensates for the lack of good gunplay.
The gameplay is janky at best and pretty bad at worst - partly because they really went for including all facets of the tabletop and maybe bit off more than they could chew: they wanted FPS gun shooting, third person melee combat, stealth with takedowns and a magic system. As such all those are fairly clunky and unpolished as a result.
Baldurs Gate is weird combat wise with its Real Time With Pause system and you really kind of have to like that slower tactical aspect to get into those games. Bloodlines is still action combat - though not exactly smooth.
Picking Tremere and relying on blood magic to get through combat might be the best bet if you're unwilling to engage in the unbelievably clunky melee.