Extreame tps drops, help?

sometimes server gets huge tps drops and then people from server goes out, can someone help me?
there isn't any off reports, errors, or something like this.

Plugins (60): AccountGuard, AdBolt, AntiJoinBot, Anti
SignHack, Auctions, AuthMe, AutoMessage, AutoShutdown, BetterBlockBreaking, Blin
gTrees, Blood, CashControl, ChatControl, ChatReaction, ChestShop, ChunkLoader, C
learLag, CommandLog, CompatNoCheatPlus, CreativeControlByKubqoA, CustomMobs, Ess
entials, EssentialsAntiBuild, EssentialsChat, EssentialsProtect, EssentialsSpawn
, Factions, FeatherBoard, GameModeInventories, GroupManager, HolographicDisplays
, Jobs, LaggRemover, LWC, MarriageMaster, MassiveCore, mcMMO, MotdManager, Multi
World, MyCommand, NoCheatPlus, OnTime, PerformanceMonitor, PlayerDataDuplicateRe
mover, PlayerHeads, PlotMe, PlotMe-DefaultGenerator, PlugMan, ProtocolLib, PTwea
ks, PvPToggle, Residence, SkinsRestorer, SpawnJoin, TitleManager, Vault, WarpPor
tals, Websend, WorldEdit, WorldGuard

I can show everything abouth pc, because i host my server on a pc