Weird walk latency

Hi everyone!

I've a weird issue from some days.

To be honest i'm not sure if i've this issue after i've update to the latest SDK or i've it some days before.. but i was thinking that most probably i've this problem before the last SDK.

However,when the fps drops down.. the speed of the character drops down too. This is weird because this wasn't so some days ago. When the fps went down simply i could see only more slowly.. but the speed of the character didn't change.

Someone can help me with this? it's weird because in the character controller scripts it's already activate the "Fixed update".. so i don't really know why this happen everytimes.