I work in a parts shop and the boss got in a pack of each of the top LED bulbs and took them home to test in his wifes C3. He just swapped the passenger side so he could compare them with the standard bulbs and they all were worse than the standard bulbs. Hes Mercedes has LEDs in the headlights...
i have put Luk focus clutches in both my pumas and both were/are excellent. focus clutch has more friction material than the puma one so they last longer and make the pedal a bit lighter to press.
My old silver puma hit 258k before it was written off. Link below is from when it "got to the moon" :)
https://www.projectpuma.com/viewtopic.php?f=13&t=22625&hilit=moon
Just a thought, are you using your air con? The compressor kicks in about every 10 seconds and will pull a little power from the engine and can give the same sort of symptoms you are describing.