XF 2.1 Incredible slow-down since updating to XF 2.1.4 from 1.5

Hobbes

Member
Hey good morning everyone!

I was wondering if I could get some help on fixing up our upgrade installation on our forum; we recently updated from Xenforo 1.5 to Xenforo 2.1.4 and we've been experiencing MASSIVE page lag and slowdown since we've done this. I suspect we're just missing a few key things for optimization (or missed a few steps along the way,) and I'm also curious if a few widgets we're running aren't partly to blame as well (I've been running WebPageTest and it's loaded quite a few images that I wasn't sure where they were coming from.)

Here is our Server Environment Report from the ACP:

Server environment report

You have the recommended PHP version.
PHP version 7.3.11-1+ubuntu16.04.1+deb.sury.org+1
MySQL version10.0.38 (10.0.38-MariaDB-0ubuntu0.16.04.1)
Server software Apache/2.4.41
PHP post_max_size 8M
PHP upload_max_filesize 8M
PHP max_input_vars 1000
PHP max_execution_time 30c
URL version 7.47.0
SSL version OpenSSL/1.0.2g
Suhosin enabled No
Imagick support Yes
EXIF support Yes
GZip support Yes
mbstring support Yes
gmp support Yes
ZipArchive support Yes

On 1.5, we were running [bd] cache (https://xenforo.com/community/resources/bd-cache.2763/), but we do not have a cache solution yet for Xenforo 2.1.4. I've been looking at Redis Cache as an option: https://xenforo.com/community/resources/redis-cache-by-xon.5562/

Does anyone have a cache solution they personally prefer? I see the list found here: https://xenforo.com/xf2-docs/manual/cache/

Is possible that our use of Cloudflare could be lagging us down as well? We thought we were under attack originally (we saw a rather large increase in requests to the site on our analytics,) but after things calmed down, turning Cloudflare down on it's security levels seemed to create even MORE lag. When we tighten up the security, it lessens the lag (seemingly.) Could this be a caching issue? We're not under attack from what everyone that's looked at the data says, but turning it down causes the site to just hang.

Are there any other "basic" performance tweaks that you generally do on your installations?

I'd be happy to provide any additional details upon request and I greatly appreciate any help or support to at least get us in the right direction (or reading in the right direction.)

Worst case scenario, what kind of coinage would I be looking at to hire someone to help us optimize our setup? I'm not the tech guru for our site and if it's best "left to the professionals," happy to at least entertain some quotes.

Thanks everyone, appreciate any help!
 
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