Message sending/role attribution very slow

[RedBlaze42]

Summary

I have found that my bot take a very long time to send messages to multiple users or assign roles to them

Reproduction Steps

Execute:
for member in guild.roles:
member.send("Test")

Expected Results

Maybe 10sec for sending 50 character messages to 100 users like when using discord.js

Actual Results

More than 3minutes

Checklist

• [ x] I have searched the open issues for duplicates.

System Information

• Python v3.7.3-final
• discord.py v1.2.3-final
• aiohttp v3.5.4
• websockets v6.0
• system info: Linux 4.19.0-5-amd64 Fix issue with author changing type #1 SMP Debian 4.19.37-5+deb10u2 (2019-08-08)

(Thank you for your awesome API)

[Rapptz]

The original claim that d.js is doing this in 10 seconds for 100 people is wrong. You're being rate limited.

[nexy7574]

Mass-DMing is also the fastest way to get your bot banned so try and avoid that ratelimit

[flapili]

Maybe 10sec for sending 50 character messages to 100 users like when using discord.js

either you are wrong or then d.js doesn't handle ratelimit 🤷‍♂
I hope for d.js you are wrong