I recently did a rewatch after not watching for like 7 years. I took a break from the show because of how much it had departed from the source material. But rewatching.... Now I realize something. See when I was a kid like in 2005-2006 I was super into comics and the more mature ones were scary, so they were awesome to me, and I found The Walking Dead for the first time. I think it was like right when the Governor was being introduced.
Anyhow I followed it for years and thought it was awesome so when I'd heard that the same network that was doing Breaking Bad at the time would also be adapting this. As a teenager it was like hearing your favorite stupid offhand book was going to made into a full thing, it was awesome to hear, and I suspect every comic original fan remembers or felt this at some point. So before the show was even really being made we all had images and expectations in our heads from the get go.
So as time went on and we heard that the show as going to be its own thing but follow very closely to the source material, it was a bit scary but we were naive to think that the phrase "Its own thing" meant anything other than just that: its own thing. So as soon as it became a show and started to get popular and more people started to find the source material to compare and see what would happen in the future even MORE expectations started to form, while still ignoring the original statement that it would be its own thing.
Then time goes on and it gets so big that "Hype" starts to become a factor. By then the OG comic fans are a little worried about how things are going to be adapted going forwards, but happy with how the show has adapted thus far. (Season 5) As a counter to that, the hype and expectations are at an all time high. Not only that, people are trying to get set photos and spoiling things a year before they happen. Also around this time going into Season 6, the fanbase at large is getting a little fatigued by the fake out deaths and the sequence of events they try to portray in such a way to maximize suspense and hype, it was chaos trying to follow this shows fanbase closely haha.
All of this compounded up until seasons 6 and 7 (haha) Where we get to the famous moment (Will not spoil anything here) OG show watchers had gotten sick of the fake outs and the subversion style story writing that was coming with these seasons and when the famous moment happened it was the final straw for a lot, and too graphic for some. The comic fans, and hardcore fans had a little hope however. They didn't like how Negan's dialogue/first appearance was handled (along with the big moment and the subsequent seasons afterward) but because of the staying power of the character and who he was to the story at large, we all stuck it out to see where this would go. While still at this point letting expectations and hype fuel the fanbase, which had finally started to become toxic to itself.
Then Season 8 and 9 happen and we get a steady decline. All of this is to say after not watching for 7 or 8 years and coming back without any of the comic expectations and without any of the hype or preconceived notions.... The show is actually consistently good throughout its ENTIRE run to be honest. Like I don't feel that Seasons 6 through 8 were "Drawn out". I think the seasons after Season 9 are a tiny bit weaker, but not by much. That's to be expected of a show of this caliber after almost 2 decades of programming. I think the original run really suffered from the expectations and the hype and without all of it, looking back its a solid show by itself if you don't try and associate it with the source material.
TLDR: TWD IS BETTER AFTER YOU REWATCH IT A LONG TIME AFTER ITS AIRED AND DONT CONNECT IT WITH THE COMICS AS ITS OWN STORY.