Theory of Unlimited Arena for Minigame

[iRegalia]

How did you all run unlimited arena? without lagging. also without bungeecord

1. Clone World ( When start a minigame )
2. increment x,y [Generated World] (Paste Schematic)
3. Any others ways?

Now im using with

on skript start:
    delete {tdm.arena.id::*}
    add "TDM-0" to {tdm.arena.id::*}
    loop 8 times:
        loop 8 times:
            add "TDM-%loop-number-2%-%loop-number-1%" to {tdm.arena.id::*}

function setMapLocation(a: text) :: text:
    loop {tdm.arena.id::*}:
        remove loop-value from {tdm.arena.id::*}
        set {_num::*} to loop-value split at "-"
        set {tdm.%{_a}%.map} to {_maploc}
        stop loop
    set {_num::2} to {_num::2} parsed as number
    set {_num::3} to {_num::3} parsed as number
    if {_num::2} = 0:
        return "*0"
    if {_num::2} / (8 * {_num::3}) = 0.125:
        return "+x|+y|*%{_num::3}%"
    if {_num::2} / (8 * {_num::3}) = 0.25:
        return "+x|*%{_num::3}%"
    if {_num::2} / (8 * {_num::3}) = 0.375:
        return "+x|-y|*%{_num::3}%"
    if {_num::2} / (8 * {_num::3}) = 0.5:
        return "-y|*%{_num::3}%"
    if {_num::2} / (8 * {_num::3}) = 0.625:
        return "-x|-y|*%{_num::3}%"
    if {_num::2} / (8 * {_num::3}) = 0.75:
        return "-x|*%{_num::3}%"
    if {_num::2} / (8 * {_num::3}) = 0.875:
        return "-y|+x|*%{_num::3}%"
    if {_num::2} / (8 * {_num::3}) = 1:
        return "+y|*%{_num::3}%"
    stop