Dear friend,
After completion of the 6-month employment, performance review of a probationer was done and if the performance was not found satisfactory then generally that person is removed from the job. However, in your case, your employer is generous to place you under Performance Improvement Plan (PIP). Rather than grumbling about applicability of PIP, I recommend you availing of this opportunity and improve the performance.
To improve your performance, you need to do two things. One is introspection and another is taking feedback from your seniors or reporting authorities on where you are going wrong. Take corrective measures to improve the performance. If you fail to do that then there lies big risk of termination from the job. Mostly your next review would be after three months. By chance if you are removed after nine months, then you will have great difficulty in explaining why you left the job after just nine months. Therefore, this is a wake up call to you!
Thanks,
Dinesh Divekar