02 Impala 3.4L 185.4k: Directional (“Blinker”) Light Fix

I just installed a replacement Hazard Switch because the directional "blinker" light stopped working (after only working sporadically for a while). This particular switch is probably made in China. Got it from CarParts.com for $23.80 delivered. Hazards now working normally (with a blink rate of a little better than 1 Hz .. just like it used to work). Directional "blinker" lights - however - are also working, but at a very fast rate: probably 3+Hz. Anybody know why this might be? I'm pretty sure the directionals and the Hazards blinked at the same rate with the original switch. Maybe a side-effect of a cheap Chinese switch? I *did* check both tail lights and they're working for both Directionals and Hazards, but can't get over the difference in flash rate between the two. Doesn't give me a good feeling that this switch will last.

The vehicle does not use a typical flasher unit. The flash rate is controlled by a timer module which is an integral part of the hazard flasher switch. I suspect the replacement unit has a timer which is affected by load, and thus may be creating a different flash rate for the two functions as a result.