[PFD-02C] Inefficient Data Transformation

[0xfornax]

PFD-02C: Inefficient Data Transformation

Type	Severity	Location
Gas Optimization		PriceFeed.sol:L136

Description:

The timeoutMinutes data entry of an oracle is always converted to seconds within the PriceFeed contract.

Example:

    return block.timestamp - _priceTimestamp > _oracleTimeoutMinutes * 60;
}

Recommendation:

We advise it to be stored as seconds instead, eliminating the need for a multiplication in PriceFeed::_isStalePrice and thus optimizing its gas cost.

[0xfornax]

Fixed.