Update faq.md (#1253)

* Update faq.md

* docs: update TOC

* Update faq.md

Co-authored-by: k9ert <k9ert@users.noreply.github.com>
Co-authored-by: benk10 <ben.kaufman10@gmail.com>

docs/faq.md

@@ -12,6 +12,7 @@
   - [*What's the difference between Specter-desktop and Specter-DIY?*](#whats-the-difference-between-specter-desktop-and-specter-diy)
   - [*Is a full node necessary for using Specter-desktop?*](#is-a-full-node-necessary-for-using-specter-desktop)
   - [*Can I use pruned mode?*](#can-i-use-pruned-mode)
+  - [*I get this message: "This is a development server. Do not use it in a production deployment.". Should i worry?](#i-get-this-message-this-is-a-development-server-do-not-use-it-in-a-production-deployment-should-i-worry)
   - [*I'm not sure I want the Bitcoin-Core wallet functionality to be used, is that mandatory? If so, is it considered secure?*](#im-not-sure-i-want-the-bitcoin-core-wallet-functionality-to-be-used-is-that-mandatory-if-so-is-it-considered-secure)
   - [How many addresses does an HD wallet have, and are they all the same?](#how-many-addresses-does-an-hd-wallet-have-and-are-they-all-the-same)
   - [*I make unsigned transactions from my cold storage using a watching-only Electrum wallet. I use public servers instead of my own node because doing it "right" is too complicated for me. Specter may be an ideal alternative if it will connect to my **headless bitcoind node**. Will this be possible?*](#i-make-unsigned-transactions-from-my-cold-storage-using-a-watching-only-electrum-wallet-i-use-public-servers-instead-of-my-own-node-because-doing-it-right-is-too-complicated-for-me-specter-may-be-an-ideal-alternative-if-it-will-connect-to-my-headless-bitcoind-node-will-this-be-possible)
@@ -130,13 +131,17 @@ Whereas, [Specter-DIY](https://github.com/cryptoadvance/specter-diy) is a do-it-
 
 ## *Is a full node necessary for using Specter-desktop?*
 
-Yes, a Bitcoin full node is needed to provide all relevant data without relying on 3rd parties, and also for its watch-only wallet capabilities. However, Specter allows you to easily setup a (pruned-) node easily within Specter.
+Yes, a Bitcoin node is needed to provide all relevant data without relying on 3rd parties, and also for its watch-only wallet capabilities. However, Specter allows you to easily setup a (pruned-) node easily within Specter. If you can, a full-node is recommended but will take a lot longer to synchronize.
 
 ## *Can I use pruned mode?*
 
 Yes, but if you have many older addresses you will need to re-download the blockchain in order to see your balance and transaction history, which will take some time.
 Since v0.8.0 there is a workaround as you can download history from an external blockexplorer which has privacy implications. Make sure to read the tooltip-hints when using that feature and also consider this question in the  [troubleshooting-section](#i-created-an-existing-wallets-but-even-after-rescanning-specter-couldnt-find-any-funds)..
 
+## *I get this message: "This is a development server. Do not use it in a production deployment.". Should i worry?
+
+No you don't have to worry unless you plan to run specter as a public service on the internet with a growing number of people using it. That was traditionally the use-case for web-apps: Run in the open public internet getting accessed by MANY people. However, that's not how specter is meant to be used. If people get performance issues, it's most likely not because the user-base is growing on their specter but because their Raspberry Pi is too weak for that one user who is doing all sorts of other stuff on that Pi on top.
+
 ## *I'm not sure I want the Bitcoin-Core wallet functionality to be used, is that mandatory? If so, is it considered secure?*
 
 You don't need private keys in Bitcoin Core, but you need wallets to be enabled `disablewallet=0` in your `bitcoin.conf` file. And if you don't want that, make also sure you're not using the Hotwallet-Feature.