iTiger profits from repairs and from buying broken phones — so our only honest move is showing you both numbers and letting them argue it out.
Roughly when the repair runs past half of what the phone would sell for working — or when it's aged out of security updates and your banking and job live on it. Bring it in; we'll price the repair and the phone and do the math where you can see it.
When the slowdown is the battery failing to deliver peak power, yes — it's the best dollars-to-performance move in the building. If your lag is storage or software, the diagnosis finds that instead, and we fix the real problem.