~]# php -m
[PHP Modules]
bz2
calendar
Core
ctype
curl
date
dom
exif
fileinfo
filter
ftp
gd
gettext
hash
iconv
json
libxml
mbstring
memcache
mysqli
mysqlnd
openssl
pcntl
pcre
PDO
pdo_mysql
pdo_sqlite
Phar
readline
Reflection
session
SimpleXML
sockets
sodium
SPL
sqlite3
standard
tokenizer
xml
xmlreader
xmlwriter
xsl
Zend OPcache
zip
zlib
What extra modules I could need to help speed up the site ? php version is 7.4
Technically, the more modules you load into PHP, the more resources it will take up.
So my advise would be to look at your codes, and determine what is the functions that you actually use, then only load those modules.
for example, you actually have "mysqli", "mysqlnd", "pdo_mysql" loaded, and they are all used to connect and query from the MySQL database. You should determine which one is the one used, and unload the others.
Same with the "pdo_mysql" and "pdo_sqlite" module. Are you using SQLite? If not, you should unload the SQLite modules.
I Also see a lot of XML parsing libraries, if not needed, those could be unloaded.