Will this help my car the way it was before I poured this additive?

So recently I had my 2003
Honda Element re tuned/serviced for a synthetic oil change, 3 stage injection cleaning service along with a set of new spark plugs. Right after that device was done, my truck ran like a brand new car and felt very peppy as it had no problem getting up to speed and climbing up steep grades. However, I myself decided to pour a Lucas fuel injectior cleaning additive and I noticed that my truck doesn't have the power and performance that it used to have before I poured this additive. This has been over 2 weeks ago since I've added this thing and I have another problem with my engine making a humming sound as I accelerate or cruise on the highway.

Should i get get this service done again(the whole process) so I can have this additive flushed out? Maybe that should help.

What will using 89 octane on an 87 octane car do for it?

I have a 2003 Honda Element that i had a recent oil change in with synthetic and I added a bottle of Lucas fuel injection cleaner along with 87 octane right before a fill up. Initially with the Lucas fuel injector cleaner I put 87 and I kept driving until I got down to a 1/4 tank. At 1/4 this time I filled it up with 89 octane and I noticed that my car feels peppier and gets up to higher speeds (85+ mph) and it seems to respond to my throttle inputs better. Does 89 octane help my car at all or am I just imagining things? It normally struggles to get past 85 mph unless I floor it and that's considereimgnotnwas pretty windy outside. I was able to reach up to 95 mph with more peddle space to go.