Show all user posts in one page but query is too slow - php

Question

I try to show the videos and pictures shared by the members in one page. The query I wrote works fine but is very slow. I don't know why this happened. That's why I need your help. You can also see the conditions I wrote in the following query.
Here is the sqlFiddle
$morequery="";
if($lastpostid) {
$morequery=" AND P.user_post_id<'".$lastpostid."' ";
}
$GetAllPostQuery = mysqli_query($this->db,"SELECT
P.user_post_id,
P.user_id_fk,P.post_type,
P.who_can_see_post,
P.post_image_id,P.post_video_id,
P.post_video_name,
U.user_name, U.user_fullname,U.influencer_status
FROM user_posts P
INNER JOIN users U
ON P.user_id_fk = U.user_id
WHERE
U.user_status='1' AND
U.influencer_status = '1' AND
(P.who_can_see_post IN('everyone','influencer','friends')) AND
(P.post_type IN('image','video')) $morequery
ORDER BY
P.user_post_id
DESC LIMIT " .$this->perpage) or die(mysqli_error($this->db));
//Store the result
while($row=mysqli_fetch_array($GetAllPostQuery)) {
// Store the result into array
$data[]=$row;
}
if(!empty($data)) {
// Store the result into array
return $data;
}
The Users Table Here:
-- phpMyAdmin SQL Dump
-- version 4.8.3
-- https://www.phpmyadmin.net/
--
-- Host: localhost:8889
-- Generation Time: Sep 10, 2019 at 11:56 AM
-- Server version: 5.7.23
-- PHP Version: 7.2.10
CREATE TABLE `users` (
`user_id` int(11) NOT NULL,
`user_name` varchar(255) CHARACTER SET utf8 DEFAULT NULL,
`user_status` enum('0','1','2','3') NOT NULL DEFAULT '0',
`user_fullname` varchar(255) CHARACTER SET utf8 DEFAULT NULL,
`influencer_status` enum('0','1') NOT NULL DEFAULT '0'
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
--
-- Indexes for dumped tables
--
--
-- Indexes for table `users`
--
ALTER TABLE `users`
ADD PRIMARY KEY (`user_id`);
--
-- AUTO_INCREMENT for dumped tables
--
--
-- AUTO_INCREMENT for table `users`
--
ALTER TABLE `users`
MODIFY `user_id` int(11) NOT NULL AUTO_INCREMENT, AUTO_INCREMENT=1;
And The User Posts Table Here:
CREATE TABLE `user_posts` (
`user_post_id` int(11) NOT NULL,
`user_id_fk` int(11) DEFAULT NULL,
`post_type` enum('text','image','link’,’video','audio','avatar','cover','gif','location','watermark','which','page','event','blog','group','product','bfaf','inf') NOT NULL DEFAULT 'text',
`post_created_time` int(11) NOT NULL DEFAULT '1524910573',
`who_can_see_post` enum('everyone','onlyme','friends','influencer') NOT NULL DEFAULT 'everyone',
`post_video_id` varchar(255) DEFAULT NULL,
`post_video_name` varchar(255) DEFAULT NULL,
`post_audio_id` varchar(255) DEFAULT NULL,
`post_image_id` varchar(255) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
--
-- Indexes for table `user_posts`
--
ALTER TABLE `user_posts`
ADD PRIMARY KEY (`user_post_id`),
ADD KEY `ex_posts` (`user_id_fk`);
--
-- AUTO_INCREMENT for table `user_posts`
--
ALTER TABLE `user_posts`
MODIFY `user_post_id` int(11) NOT NULL AUTO_INCREMENT, AUTO_INCREMENT=1;
--
-- Constraints for table `user_posts`
--
ALTER TABLE `user_posts`
ADD CONSTRAINT `ex_posts` FOREIGN KEY (`user_id_fk`) REFERENCES `users` (`user_id`);
What should I do to make the query work faster? Can you help me.

Answer 1

The fiddle contains too few rows to reproduce the problem but these 2 indexes might help.it really depends on your data distribution.
ALTER TABLE users ADD KEY(user_status,influencer_status);
ALTER TABLE user_posts ADD KEY(who_can_see_post,post_type);