What would be the best time to deploy the Long Straddle for Nifty 50?

I was observing NIFTY 50 premiums for the last few days, especially on expiry days, and noticed that at certain points the premiums tend to move aggressively in one direction.

So, I thought of deploying a similar setup on the Streak platform using time-based option strategies with an exit based on the combined P&L feature.

Initially, I was deploying the strategy around 2:00 PM. Has anyone noticed any other timings or specific reasons/conditions where this kind of setup has a higher probability of working better?