It's not just Jar-Jar. The amount of CG and green screen was off-putting given how good Lucas was at practical effects, and those more modern techniques have aged much worse in a much shorter time frame. The movies may be slow, but the action sequences are actually quite long, drawn out, and pointless (the third act of Attack of the Clones is especially bad). The fight choreography was also extremely different, with the simple, grounded light saber fights being replaced with silly back-flips and summersaults.

There are also odd story elements that seem to contradict the OT; why did Obi-Wan say Yoda trained him? How did the Jedi go from being a powerful peace-keeping force known throughout the galaxy to a myth in 20 years? Why did Leah claim she could remember her mother? (I'm sure Lucas came up with explanations for these things, but they still stand out.) All in all, they are a huge tone-shift from their predecessors, in both storytelling and filmmaking.

In contrast, the sequel films are able to emulate the original trilogy much more faithfully in terms of practical effects and set design. The real problem was, where Lucas over-developed his prequel trilogy for 30 years, Disney under-developed their sequels, with no plan for where the story should go. Abrahams created a basic retread of the first film, Johnson threw everything out in the second, and the third film was just desperately trying to write itself out of a corner. Those movies had no idea where they wanted to go, so they went nowhere.

Episode 1 is slow?! It starts with jedis being betrayed by the trade federation, escaping the ship and going to naboo, rescuing jarjar and meeting the gungans, crossing the planet's core to get to Theed, rescuing Padmé and escaping to tatooine, winning the podrace and going to coruscant, then finally returning to naboo to end the invasion of the trade federation, all in one film. How can it be more packed with action and events? Certainly more action and event packed than Luke spending 1h of the film in a swamp

The sequels people like for the action and entertainment

I have the same feeling but for prequels.

I never took Star Wars very seriously and I always see the story and lore as being a fun adventure. But the problem with the sequels is that it doesn't have the direction and vision. I don't know about the others, but for me that made the sequels not click.

Just like the prequels

Universally hated but then kids who grew up with it became adults

Also, the prequels had fun and interesting world building. Look at games like battlefront and fallen order or all the new aliens we were introduced to.

The prequels made star wars feel larger than the original trilogy, the Sequels made the world feel smaller. No new alien race that plays a big role, no new worlds of interest (maybe the red salt planet, but it's a barren wasteland), no new ships or technology.

Unlike the prequels (spanning decades, wars, and planets) the Sequels don't have anything to build off of to save them.

So much clumsy and lazy storytelling, taking shortcuts on one side, astronomically improbable coincidences to abruptly thrust the plot forward, baffling detours into shenanigans filler material that leads nowhere special, just to justify a visual sequence or to sell toys.

There's some great ideas in there, as well as the unpopped kernels of other great ideas. So much unfulfilled potential, with tantalizing, infuriating glimpses of what could have been.

It's like Lucas cracked the code with Empire Strikes Back, with a team of equals all working together and ready to push back on questionable ideas and impulses... then Lucas never tried that workflow again.

Then Disney fumbled the ball by allowing the goddamned "mystery box" approach, by requesting a misguided thing, summed up in the following sentence - "That thing you did with Star Trek... do it with Star Wars!"

It's so frustrating too because the atmosphere, casting, acting, even the characters are really compelling. But they just absolutely refused to take any risks. It's like they just didn't get the whole point. Rey needed to become a gray character, and kylo needed to be redeemed. And they both had to live with it and shoulders the burdens of their past. Luke needed to accept that ultimately people are people and you can't expect to entirely subvert either your baser or more noble emotions and instincts.

The prequels are pretty solid outside of maybe the middle of Attack of the clones. The lightsaver battles and special effects are way better