My highly configured Dell Latitude E6410 laptop has become extremely slow, even for browsing or multitasking for the past 14 months. I thought it was because of Windows, so I tried fresh installations of win7, 8.1 and 10 - Still didn't solve the issue. But it was amazingly fast when it was new. The laptop originally came with a 95w power adapter, which I lost, and using a 65w adapter. Could this be causing the trouble? Machine also seems to overheat quickly.
Full specs
Core i5 2.5 ghz
8gb 1600 mhz
Nvidia M3100 graphics chipset
SSD 256GB
Answer
As Sean already wrote: A low power adaptor would make it charge slower, but it will not actually slow down the laptop.
... except in some cases where the laptop is made by Dell.
Dell uses locked powersupplies. It recognises the PSU as Dell branded. If it does not detect that (e.g. if you replaced a 95W Dell PSU with a 65W generic one) it will complain at boot and run the laptop is low performance mode. The linked article is for alienware laptops (bought by Dell) but I have seen the same on the Dell lattitude series.
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