If you observe keenly, drop in acceleration would be noticeable... But it won't be too much of a difference.
Try one of the bikes' front sprocket that I mentioned. I believe it must cost around 70-80 rupees at most..
Maybe RX135's might cost more, because its spares might be supplied less...
Also, get the chain adjusted for an ideal, 35-40mm play. Chain will be adjusted after changing sprocket...