ps. these spec of these 2 computers are likely
Just to make that clear again: Such small differences in timing don't imply that there is something wrong. There are a lot of factors which influence the timeliness of your application, hardware is just one. Process scheduling is also affected by other applications, background processes and energy settings, so even if "the specs are similar" (whatever that means), it's very unlikely you achieve exactly the same timing.
Thus, we're discussing a non-problem here.