# Shaving browser for saving CPU power

**URL:** <https://connect.superhuman.com/t/shaving-browser-for-saving-cpu-power/12470>\
**Category:** Tips and Hacks\
**Created:** [November 26, 2019, 11:25pm UTC](https://connect.superhuman.com/t/shaving-browser-for-saving-cpu-power/12470 "2019-11-26T23:25:11Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Juan\_Luis\_Chulilla](https://yyz1.discourse-cdn.com/coda1/user_avatar/connect.superhuman.com/juan_luis_chulilla/32/654_2.png) [@Juan\_Luis\_Chulilla](https://connect.superhuman.com/u/Juan_Luis_Chulilla)\
**Post date:** [November 26, 2019, 11:25pm UTC](https://connect.superhuman.com/t/shaving-browser-for-saving-cpu-power/12470/1 "2019-11-26T23:25:11Z")

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This evening has been quite frustrating. I’m working on a doc with hundreds of rows, dozens of fields in 10 tables and a similar number of formulas. I had to use my beloved thinkpad X230, a nice old machine that has been one of my workhorses for seven years. Such machine has work seamessly with other Heavy coda docs. Think that such a laptop is still more powerful with 12 gb of RAM than most of Chromebooks, for instance.

Thing is, I made a very subtle mistake in two formulas that made my laptop calculate like a math berserker. I was also using a 4G modem. Anyways, the dreadful “Calculating…” message appeared for, say, more than two hours.

Finally I could correct the mistake (using the complete name of table.field when I tried to make a `table.lookup(table.field, thisrow`, instead of pointing to field without pointing to parent table). But I thought: What could I do during next “Calculating…” party?

Well, if you use a proper PC, you can install several Chromium-based browsers. You can use coda on a browser with few extensions installed and it would work fine. But what about a chromebook?

Then I realized than Incognito mode doesn’t load extensions unless you specify the contrary. I tried the same coda doc on incognito mode… and CPU load was decreased from 18.7% on my desktop to 3.1%.

![image](https://global.discourse-cdn.com/coda1/original/2X/d/d727398e02849a0144578a0bb961cb01bbc87084.png)

TL/DR: if you have heavy docs than are making your pc choke, try incognito mode