so you rather have your iPhone restart 10x a day? Awesome.
Also, if you don't want your iPhone to slow down, pay the $70 for a new battery install.... its like saying... "I drove my car 100K miles and now my transmission just stopped working. PLANNED OBSOLESCENCE!! They just want me to buy a new car. Instead, my car should last forever."
Yes, let it shutdown 10x. You will know that a new battery is necessary.
Get faster by replacing battery? Sure, absolutely. Only problem is Apple didn’t tell anybody that the battery was the reason your phone is so slow. If the phone is so slow, why would I want to shell out money for the battery, best to replace the whole thing. Ingenious Apple, ingenious.