Default ratelimit of 20 queries/sec is way too low

### Prerequisites

- [X] I have checked the [Wiki](https://github.com/AdguardTeam/AdGuardHome/wiki) and [Discussions](https://github.com/AdguardTeam/AdGuardHome/discussions/categories/q-a) and found no answer

- [X] I have searched other issues and found no duplicates

- [X] I want to report a bug and not [ask a question or ask for help](https://github.com/AdguardTeam/AdGuardHome/discussions/categories/q-a)

- [X] I have set up AdGuard Home correctly and [configured clients to use it](https://github.com/AdguardTeam/AdGuardHome/wiki/Clients). (Use the [Discussions](https://github.com/AdguardTeam/AdGuardHome/discussions/categories/q-a) for help with installing and configuring clients.)

### Platform (OS and CPU architecture)

Linux, AMD64 (aka x86_64)

### Installation

Custom package (OpenWrt, HomeAssistant, etc; please mention in the description)

### Setup

On a router, DHCP is handled by the router

### AdGuard Home version

0.107.44

### Action

Open a single large web page (ie reddit home page) or multiple sites in tabs on a cold cache.

### Expected result

Web page(s) open in a timely fashion.

### Actual result

DNS queries stall on some or all of the pages due to the rate limit.

### Additional information and/or screenshots

After installing AdGuardHome on my router, I noticed a intermittent stall in loading some web pages. Notably, 'large' ones or when loading multiple at once.
After some testing I believe it's due to the default rate limit settings on AdGuardHome.

For example, loading the reddit home page on a cold cache will make upwards of _38_ dns queries.