Survey implementation

[zervis]

Hi there,

I want to create a survey on my website where votes from users are collected.

How to approach this?

I've already done it via creating custom form and user fields then counting each answer from user data, then displaying the results via chart.js. It's doing the job. User is able to change their mind in his profile,  but I think this approach will be too slow/heavy to process with many charts to show with many users. 

Another solution would be incrementing values in each answer for vote fields, but then how user could edit it?
If the vote is corrupted for some reason (troll account), how I could filter it?

My current soultion works fine, but is it good way of doing this?

Thanks!