Redis Server Consume CPU

Hi,

When I see htop, redis server consume a lot of CPU. Currently we have 8 CPU and mostly taken by redis server.

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This is my diagnostic

Status: Connected
Client: PhpRedis (v5.3.4)
Drop-in: Valid
Disabled: No
Ping: 1
Errors: []
PhpRedis: 5.3.4
Predis: Not loaded
Credis: Not loaded
PHP Version: 7.3.28-2+ubuntu18.04.1+deb.sury.org+1
Plugin Version: 2.0.18
Redis Version: 6.0.6
Multisite: No
Filesystem: Working
Global Prefix: "fk_"
Blog Prefix: "fk_"
WP_REDIS_PREFIX: "www.finansialku.com"
WP_CACHE_KEY_SALT: "www.finansialku.com"
Global Groups: [
    "blog-details",
    "blog-id-cache",
    "blog-lookup",
    "global-posts",
    "networks",
    "rss",
    "sites",
    "site-details",
    "site-lookup",
    "site-options",
    "site-transient",
    "users",
    "useremail",
    "userlogins",
    "usermeta",
    "user_meta",
    "userslugs",
    "redis-cache",
    "blog_meta"
]
Ignored Groups: [
    "counts",
    "plugins",
    "themes",
    "tribe-events-non-persistent",
    "avada"
]
Unflushable Groups: []
Drop-ins: [
    "advanced-cache.php v by ",
    "Query Monitor Database Class v by ",
    "Redis Object Cache Drop-In v2.0.18 by Till Krüss"
]

Waiting your feedback