Slow query

Hi guys, how are you? I need your help because I don’t know what to do with a slow Wordfence query running on my server. The query is taking 6 seconds and pass thru 240 rows:

This is the query:
SELECT name, val
FROM mytable_wfconfig
WHERE autoload = ‘yes’

And the details:
id: 1
select_type: SIMPLE
table: mytable_wfconfig
type: ref
possible_keys: wfconfig_autoload_idx
key: wfconfig_autoload_idx
key_len: 1
ref: const
rows: 240
Extra: Using index condition

Any tip here?

Thanks in advance!