It's definitely faster direct from my laptop
I got an average 178 after like 5 to 10 mins. My best was 118 (without doing jumping the gun bullshit)
I used a 60hz screen for the test, which can add up to 16ms of reaction time since the screen refreshes only 60 times per second. I did the test on a 144hz screen and got consistent 160ms there. screen refresh-rate matters A LOT in reaction time tests. So, use the highest possible Hz screen you can find!
Edit: I actually posted the technical stuff years ago:
60Hz monitor: 16.67ms
144Hz monitor: 6.94ms
240Hz monitor: 4.17ms
360Hz monitor: 2.78ms
Basically, if you did the test on 60Hz you can simply remove ~10ms from your result on average. And maybe another 1-2ms from the mouse signal if you have a crappy one since they also have a polling rate (similar to Hz). Mine has 1000Hz polling, so it should be near 0ms. (but not 0)