a 100uF was added between pin 2 and ground. so your 4.7 cap was completely missing in my circuit lol. changing capacitance changes speed, also adding a pot where the 1m resistor is also changes speed although it isn't nearly as noticeable.
it seems when i work with the 555 timer i always run into oscillation issues. IO tried a similar circuit yesterday trying to do a knight rider circuit but i wasn't getting any results, all the lights came on and couldn't change outcome.